Issei, completely deadpan:
"OmniSync? Nah, it doesn't have cool functions like your Omnitrix.""It's just a cool-looking watch. Also, I travel a lot… so I needed it to auto-adjust time across realities."
What OmniSync Actually Does (even if Issei thinks it's just a cool watch):
Auto-syncs with any reality's temporal flow.
Intercepts destiny threads to pre-alert about multiversal fluctuations.
Adjusts Issei's physical and magical energy to match each timeline's laws.
Remembers anniversary dates across timelines for all wives (critical survival function).
Ben, Struggling to Cope:
"You mean… you made a multiversal Omnitrix…just so you'd never be late again?!"
Issei, sipping tea:
"Of course. Punctuality is sexy."(ok this is kinda issei i mean issei never was late for his dates even when he got killed in the first date he wasnt late rayanare was )
ben asked cmon you must be stronger than the multiverse due to the watch it it is a omniversal omnitrix
Issei, calmly flexing his reality-synced watch:
"As I said…It's not a omniversal Omnitrix.My strength—even in one of my strongest forms, Apocalypse Answer Arms—barely puts me at Tier 2-C."(this is canon according to light novels)
"Do you even understand how vast the omnverse is
your strongest alien Alien X only affects your multiverse(according to battle wiki alien x is tier 2A)That's a raindrop in an ocean.(no disrespect towards alien x he is stronger than most of fiction this line issei is saying he is weak and omniverse is something even ben doesnt have complete access to)
gwen asks what is your reason for a watch anyway (i am forgetful so i didnt include other characters i am now including other characters from ben)
Issei, tightening his OmniSync on his wrist:
"This isn't for battle.It's to remind me of my 11 anniversaries.I married 11 women, after all.""I can't be like Ben.He pulls, sure…But he can't hold a relationship."(tribute to bens exes and no insult to ben he dealt with a lot)
Gwen:
"...he didn't have to violate Ben like that."
Kevin:
"Bro called him a galactic flirt with commitment issues."
Ben (probably):
"Okay, yeah, I've had some rocky stuff with Julie…"Issei, sipping tea from a 'World's #1 Dragon Husband' mug:
"Didn't one of your girlfriends leave you because you ignored her for aliens?""Couldn't be me. My wives become angels(irina), dragons(Koneko Toujou + Ravel Phenex (via bonding with Issei)), and literal goddesses(Ingvild Leviathan + Rossweisse since they have god-tier origins or potential)—for me."(issei is just beign confident he has wives)
Plumber HQ Chat Log(fake version):
Julie Yamamoto
Series/Timeline:Ben 10: Alien Force and Ultimate Alien (Classic Continuity). She also appears briefly in Omniverse (as Ben's ex).
Nature of Interest: Julie was Ben's long-term girlfriend during his teenage years. Their relationship was a mutual romantic relationship – Julie and Ben openly dated and cared for each otheren.wikipedia.org.
Mutual or One-Sided: Mutual. Julie reciprocated Ben's feelings, and they maintained a steady relationship for a significant period (she is described as one of Ben's major love interests in the seriesen.wikipedia.org). They eventually broke up by the time of Omniverse (the break-up is acknowledged in Omniverse).
Notable Episodes/Scenes: In AF Season 1, episode "Pier Pressure," Ben asks Julie out on a date (their first date). Throughout Alien Force and Ultimate Alien, Julie appears in numerous episodes as Ben's supportive girlfriend – for example, UA episode "Hit 'Em Where They Live" shows their relationship, and UA "Eye of the Beholder" has scenes of them together. In Ultimate Alien finale arc, their relationship becomes strained, and by Omniverse episode "Rules of Engagement," it's revealed they have split up (Julie appears with a new boyfriend). Despite the breakup, Julie's canonical romantic interest in Ben was clear during AF/UA.
Continuity Notes: Julie exists only in the classic continuity (she does not appear in the 2016 reboot). In canon, she eventually becomes Ben's ex-girlfrienden.wikipedia.org. After their break-up, Julie still cares about Ben as a friend (e.g. she helps in Omniverse episodes) but no longer dates him.
Kai Green
Series/Timeline: Debuted in the Original Series ("Benwolf" episode) and reappeared in Omniverse. Also shown in an alternate future timeline (Ben 10,000 scenarios).
Nature of Interest:Crush turned future relationship. In the Original Series, Kai is introduced as Ben's childhood crush – Ben is smitten with her at first sight. However, young Kai did not initially return Ben's feelings (humorously, she was more interested in Ben's werewolf-like alien form than in Ben himself). In Omniverse, as teens, Kai and Ben reconnect and the dynamic changes: she works with Ben on adventures, and there are hints of mutual affection. In an alternate future (Ben 10,000 timeline), Kai is portrayed as Ben's future wifeen.wikipedia.org.
Mutual or One-Sided: Initially one-sided (Ben→Kai in the Original Series). By Omniverse, the interest becomes more mutual – they cooperate closely and exhibit some flirting/jealousy. In the "Ben 10,000" future timeline, it is fully mutual, as adult Ben and Kai are married with a son, Kennyen.wikipedia.org.
Notable Episodes/Scenes:OS episode "Benwolf" – 10-year-old Ben tries to impress Kai (performing a Navajo dance with her). Kai shows fascination only toward the "Benwolf" alien, leaving Ben disappointed. Omniverse revisits Kai in episodes like "An American Benwolf in London" and "Fight at the Museum," where she teams up with Ben; their interactions suggest some romantic tension (Kai even asks Ben for help and seems happy to see him). In Omniverse episode "Fight at the Museum," Kai and Ben work together and there's subtle chemistry (Ester even teases Kai about Ben). In the future-set episode "Ben 10,000 Returns" (UA) and Omniverse lore, it's revealed that in one continuity Ben ends up marrying Kaien.wikipedia.org.
Continuity Notes: Kai's romantic interest in Ben is cemented in an alternate future timeline where she becomes his spouseen.wikipedia.org. In the present Classic timeline, they never officially dated on-screen, but Omniverse strongly implies a budding mutual interest as teens. (Kai does not appear in the reboot continuity.)
Elena Validus (Elena Valadis)
Series/Timeline: Introduced in the live-action film Ben 10: Alien Swarm (set in the Alien Force era), later appears in Ultimate Alien Season 3 and a cameo in Omniverse.
Nature of Interest:Childhood friend turned love interest, complicated by villainy. Elena is a Plumber's kid and a former friend of Ben's. In Alien Swarm, it's revealed she and Ben had a past friendship (and implied teen romance) – Ben clearly had feelings for her, and Elena's actions imply she still cares for Benben10.fandom.com. Their reunion in the film has romantic tension. However, Elena becomes semi-antagonistic due to a nanochip infestation. In Ultimate Alien, Elena returns (episode "The Perfect Girlfriend") and explicitly demonstrates romantic interest by impersonating Julie to get close to Ben (showing an almost obsessive crush).
Mutual or One-Sided: Initially mutual (in their backstory and Alien Swarm, both show attraction). By the Ultimate Alien appearance, it leans one-sided from Elena's side – Ben is with Julie at that time and is uncomfortable with Elena's deceptive attempts.
Notable Episodes/Scenes:Alien Swarm (2009 film): Ben defies Grandpa Max to help Elena, indicating his lingering feelings; there are several close moments, and Kevin teases Ben about Elena being an "old flame." By the film's end, Elena hugs Ben after being freed from the nanochips, a clear affectionate moment. UA episode "Revenge of the Swarm"/"The Perfect Girlfriend": Elena uses nanochips to impersonate Julie and tries to literally become Ben's girlfriend – an explicit expression of her attraction. She kisses Ben (disguised as Julie) and later reveals herself, showing how desperately she "wanted to be with him." Ben rejects her advances, making it clear his heart was elsewhere, leading to a conflicted confrontation.
Continuity Notes: Elena is confirmed as one of Ben's love interests in canonben10.fandom.com. Though she started as an ally, her obsession and the nanochips turned her into a semi-villain. By Omniverse, Elena is seemingly reformed (she has a cameo in the episode "The Most Dangerous Game Show" as one of the women abducted to compete for Ben, implying she still harbors feelings). Elena's storyline is only in the Classic continuity (no reboot version of Elena).
Jennifer Nocturne
Series/Timeline:Ben 10: Ultimate Alien (Season 1–2).
Nature of Interest:Starstruck crush. Jennifer is a famous teen actress who developed a romantic infatuation with Ben after he saved her life. Upon being rescued, she immediately showed attraction to Ben – even surprise-kissing him in public out of gratitude and admirationben10.fandom.com. Her interest begins as a genuine crush on her "hero," though it later takes an odd turn.
Mutual or One-Sided: Largely one-sided. Jennifer was very forward about liking Ben (kissing him and declaring him as her savior). Ben was flattered but didn't truly reciprocate (he was dating Julie at the time). He treated Jennifer kindly but kept things professional. Eventually, Jennifer's feelings shift away from Ben, becoming fixated on someone else, so the romance never became mutual.
Notable Episodes/Scenes:UA episode "Hero Time": Ben saves Jennifer from a villain (Captain Nemesis). A grateful Jennifer then kisses Ben on the lips in front of reportersben10.fandom.com, making her crush very obvious. She even calls him her boyfriend in media interviews afterward (trying to fabricate a celebrity "relationship" for publicity). UA episode "Andreas' Fault"/"Catch a Falling Star": shows Jennifer's storyline concluding – she becomes dangerously obsessed with Captain Nemesis (the very villain who endangered her) and assists him, even attempting to kill Ben when he tries to arrest Nemesisben10.fandom.com. These later actions reveal that Jennifer's initial crush was shallow or based on hero worship, not a lasting love.
Continuity Notes: Jennifer's open attraction to Ben (the kiss and attempts to get close to him) is canon in Ultimate Alien. She does not appear in other series. By the end of her arc, her crush on Ben fizzles out, so she's a short-term love interest. (She is briefly seen among the contestants in Omniverse "Most Dangerous Game Show," implying her past interest in Ben is remembered, though by then she had moved on to Nemesis.)
Eunice
Series/Timeline:Ben 10: Ultimate Alien Season 2, plus a cameo in Omniverse.
Nature of Interest:Naive new lifeform with a sweet crush. Eunice is actually a humanoid alien construct (the prototype Unitrix device given temporary human form) who spends a day with Ben. During that short time, she develops a clear fondness for him. Ben and Eunice bond closely (this happens when Ben was on a "break" from Julie), and Eunice shows innocent romantic curiosity toward Ben. She even gives Ben a cheek kiss, demonstrating affectionben10.fandom.com.
Mutual or One-Sided:Mutual, but brief. Ben was clearly taken with Eunice (he blushes and nearly kisses her too), and Eunice reciprocated with genuine warmth. Their connection is sweet but short-lived due to circumstances.
Notable Episodes/Scenes:UA episode "The Transmogrification of Eunice": Ben discovers Eunice in the forest; he spends the day with her (teaching her about Earth, enjoying each other's company) and there's an almost-kiss moment under the starstvtropes.org. Their tender moment is interrupted by a villain attack, but it's clear they were attracted to each other. By episode's end, Azmuth reveals Eunice's true nature and takes her to work with him, forcing a goodbye. UA episode "Simian Says": Eunice reappears briefly and playfully kisses Ben on the cheek when they meet againben10.fandom.com, confirming she still harbors affectionate feelings. Ben is happy to see her as well.
Continuity Notes: Eunice's time with Ben occurs in the classic timeline. Because she's not a normal human (and was taken by Azmuth), the romance never progressed beyond a friendly crush. Interestingly, Eunice is later revealed to have been created from a sample of Gwen's DNA, making her "family" in a bizarre senseben10.fandom.com – something Ben notes awkwardly in Omniverse (episode "The Most Dangerous Game Show," where Ben refuses to consider Eunice a suitor for that reason). Aside from that comedic continuity note, Eunice stands as a unique case of Ben briefly falling for an alien girl who literally was the Omnitrix.
Emily
Series/Timeline:Ben 10: Ultimate Alien Season 3 (Classic Continuity).
Nature of Interest:Normal girl crush/date. Emily is a school friend of Gwen's (a paraplegic girl in a wheelchair) who ended up going on a date with Ben. The date itself implies mutual interest, but it turned into a disaster due to superhero hijinks – yet it confirms Emily did have enough attraction to Ben to accept a date. After the incident, she expressed her feelings in the form of annoyance (being mad at Ben for what happened) rather than lovey-dovey behavior.
Mutual or One-Sided: *Mutual at first, then sour. Ben presumably asked Emily out (or agreed to a setup), indicating he found her nice, and Emily was interested enough to join him. However, after Ben's actions on the date, any budding interest from her side turned into anger. She doesn't "hate" him permanently, but she's understandably upset. So, initially mutual, but ultimately it didn't progress.
Notable Episodes/Scenes:UA episode "It's Not Easy Being Gwen": This episode reveals Ben took Emily on a date to a rooftop (for a better view while he fought a villain). As Spidermonkey, Ben webbed Emily to the top of a 200-foot tower "for her safety" and then forgot to immediately get her downben10.fandom.com. Emily was left stuck up there, terrified. Later, she vents to Gwen that she's furious with Ben for that stuntben10.fandom.com. Despite her anger, the very fact they went on a date shows Emily had a romantic interest in Ben. (Gwen even teases Ben about messing up a date with her best friend.) There aren't tender scenes – the interest is clear from context rather than affectionate moments – but it's explicit that the date happened and Emily "was into him" until it went awry.
Continuity Notes: Emily is a rare example of Ben dating a normal human (non-superpowered) peer aside from Julie. Her crush on Ben is canon but very short-lived. She's only in that one Ultimate Alien storyline. By the end of the episode, Gwen mentions Emily doesn't truly hate Ben, she was just madben10.fandom.com – suggesting Emily's crush was likely squashed by the bad date, and there's no ongoing romance.
Ester
Series/Timeline:Ben 10: Omniverse (multiple episodes).
Nature of Interest:Slow-burn crush/friendship. Ester is a half-human, half-Kraaho alien hybrid from Undertown who becomes an ally of Ben. Over several encounters, Ester develops a noticeable crush on Ben – she is very affectionate and drops romantic hints towards himben10.fandom.com. She even goes on what she hopes are dates with Ben. However, Ben, in typical fashion, is often oblivious to her flirtations. Ester's feelings are genuine; she likes "Ben 10" the hero, though she later realizes Ben's heart might belong to someone else (future Kai).
Mutual or One-Sided: Primarily one-sided (Ester → Ben). Ester's fondness for Ben is clear in her words and actions, but Ben mostly treats her as a friend/comrade. He doesn't pick up on her flirting for a long timeben10.fandom.com. Eventually, when it becomes clear to Ester that Ben isn't destined to be with her (after time-travel shenanigans reveal Kai as Ben's future wife), she gracefully steps backben-10-list.fandom.com. By the end of Omniverse, Ester has moved on (dating someone else), so Ben never truly reciprocated her romantic interest.
Notable Episodes/Scenes:"Hot Stretch" (Omniverse Season 1): Ben and Rook meet Ester during an Undertown adventure; Ben is impressed by her, and she helps him, marking the start of their friendship. "Rules of Engagement" (OV Season 6): Ester recruits Ben's team (and Ben's then-girlfriend Julie) to help with a mission – notable for some awkwardness since Ester clearly likes Ben while Julie is presentben10.fandom.com. "Catfight" (OV Season 6): Ester and Ben double-date (sort of) with Rook and his girlfriend; Ester is happy to spend time with Ben. In that episode's climax, Ester watches Princess Looma and Princess Attea literally fight over who gets to marry Benben10.fandom.com – a situation that makes Ester realize Ben has many suitors. "Fight at the Museum" (OV Season 7): Ester invites Ben out to the museum — Ben naively brings Rook along, not realizing it was meant to be a date. Ester's disappointment (and slight jealousy toward Kai, who appears in this episode) is evident. "The Most Dangerous Game Show" (OV Season 8): Ester is one of several female characters kidnapped by a game master to compete for Ben's "hand." In the end, Ester tells Ben she's started dating a boy named Antonio and is "tired of fighting fate"ben10.fandom.com, indicating she's accepted that her romance with Ben isn't happening. This is a bittersweet resolution to her crush.
Continuity Notes: Ester's storyline is entirely in the Classic continuity's Omniverse. She never becomes Ben's girlfriend on-screen (though some materials list her as an "ex-girlfriend," it was more of a hopeful connection than an official relationshipben10.fandom.com). An interesting continuity note is Ester learning about Ben's future marriage to Kai – this occurs in Omniverse when an older Ben (Ben 10,000) or his time-traveling son is revealed, which prompts Ester to give up on pursuing Benben-10-list.fandom.com. By series' end, Ester remains a close ally and friend to Ben, with her romantic interest unresolved in canon beyond her own acceptance.
Princess Looma Red Wind
Series/Timeline:Ben 10: Omniverse (Tetramand storyline in Season 5–6).
Nature of Interest:Arranged/earned betrothal – warrior's tradition that becomes personal. Looma is a princess of the Tetramands (Four Arms' species). According to Tetramand custom, if a female is defeated in battle by a male, she considers him a suitable mate. Looma initially is intended to marry Kevin Levin (arranged by her father), but when Ben (as Four Arms) ends up defeating Looma in combat, she immediately proclaims Ben as her new fiancében10.fandom.com. Looma takes this "marriage by combat" seriously – she is quite infatuated with Ben's strength and valor, calling him her future husband and pursuing him with enthusiasm. Her interest in Ben is very explicit (even if driven by tradition, she genuinely seems attracted to him).
Mutual or One-Sided:One-sided (Looma → Ben). Looma is completely smitten with the idea of marrying Ben after he bests her. Ben, on the other hand, wants nothing to do with this arrangement – he finds it overwhelming and spends most encounters trying to talk (or fight) his way out of marrying Looma. He doesn't reciprocate her romantic feelings at all, which frustrates Looma.
Notable Episodes/Scenes:"Many Happy Returns" (OV Season 5): Looma first meets Ben when she arrives to enforce the arranged marriage with Kevin. Ben duels Looma to free his friend – when Ben (as Four Arms) wins the fight, Looma hugs him and happily announces that he is now her betrothedben10.fandom.com. This twist kicks off her romantic pursuit of Ben. "Rules of Engagement" (OV Season 6): Looma returns to collect items for her wedding to Ben – she literally starts preparing for their marriage. In this episode, she attacks anyone in her way and even kidnaps Ben's friends as "gifts." Notably, Looma fights Julie upon learning Julie is (or was) Ben's girlfriend, showing Looma's jealousy. Looma tells Ben's mom that she's excited to be her future daughter-in-lawben10.fandom.com. Eventually, Julie (with help) defeats Looma in combat, forcing Looma to accept temporary defeat in love. Looma, heartbroken, says she'll return again for Ben. These scenes underscore how openly Looma expresses her desire to marry Ben – she virtually courts him through battle. (Cameo in "Catfight" and "Most Dangerous Game Show": Looma is seen again among the women vying for Ben, reaffirming her ongoing interest in him.)
Continuity Notes: Looma's romantic interest is played for comedy but is quite canon. As a proud Tetramand, she frames her love as a matter of honor and conquest. While her pursuit of Ben remains unresolved (Ben never capitulates, and Looma leaves vowing to try again), it's clear Looma truly sees Ben as an ideal mate. This only occurs in the Classic continuity. There is no sign of Looma in the reboot series.
Princess Attea
Series/Timeline:Ben 10: Omniverse (Incursean arc in Season 3 and later appearances in Season 6–8).
Nature of Interest:Love-hate flirtation and political marriage antics. Attea is the princess (later Empress) of the Incurseans (frog-like aliens). For the most part she's an antagonist, but she has a feisty personal interest in Ben that surfaces in later encounters. Attea's "interest" in Ben is shown through flirtatious banter and even a kiss – often mixed with her combative nature. There are hints that she finds Ben attractive (or at least enjoys teasing him). At one point, she nearly enters a forced marriage scenario with him as a power move, but it's implied she doesn't entirely mind the idea.
Mutual or One-Sided:Largely one-sided (Attea's side). Ben does not return Attea's romantic overtures – he's usually bewildered or grossed out by them. Attea's feelings aren't portrayed as deep love; rather, it's an attraction laced with rivalry. She's intrigued by Ben's prowess and gets a kick out of pushing his buttons. It's more a playful/crush vibe from her, whereas Ben just wants to stop her schemes.
Notable Episodes/Scenes:"Frogs of War" arc (OV Season 3): Ben and Attea clash as enemies, but Attea is shown to be a teenager here and there's no romance yet (she's focused on conquering Earth). Later Omniverse episodes (Season 6) start the flirtation: In "Catfight," Attea teams up with Looma and Nyancy Chan in a chaotic battle over Ben. Here it's revealed Attea is literally fighting to claim Ben, treating him as a prize, which indicates she has some personal interest (even if partly for pride)ben10.fandom.com. The title "Catfight" refers to Looma and Attea arguing over who gets Ben – at one point, Attea snidely suggests she has a better claim. "The Most Dangerous Game Show" (OV Season 8): Attea is one of the abducted contestants forced into a marriage competition for Ben. She participates enthusiastically, flirting and showing off. Notably, at some stage Attea kisses Ben (this occurs in Omniverse, referenced in dialogue and by fans) – Ben jokingly asks if she'll turn into a human princess if kissed (a play on the frog prince fairy tale), to which Attea indignantly replies "I am a princess!"cartoonnetworkcn.fandom.com. That scene highlights the comedic romantic tension between them. After the events, Attea remains an ally-of-sorts and still calls Ben "Tennyson" in a fond way.
Continuity Notes: Attea's flirty interest in Ben is a fun aside within Omniverse and is acknowledged by characters (even the fandom notes "even Attea has the hots for him"ben10.fandom.com). This dynamic is unique to the Classic continuity; in Alien Force she was just a child, and in the reboot continuity the Incurseans appear but Attea herself does not make an appearance. By the end of Omniverse, Attea retains her throne and there's no actual romance – just unresolved tension and jokes. It's an explicitly shown attraction on her side, but never anything serious from Ben's perspective.
(ben pulled 9 women he didnt keep 1 relation stable he married kai green and
Kai Green is the only woman canonically shown to marry Ben, but only in the Ben 10,000 alternate future timeline.)