"Quick, spread the word! They're saying the new princesses are Ryuya-sama's daughters."
"Did you hear? Ryuya-sama and the two princesses had daughters together."
"Stop talking nonsense! Aren't those the daughters of Ryuya-sama and Yukinoshita-san?"
"The version I heard is that the two princesses and Yukinoshita-san are sisters?"
"From what I know, Ryuya-sama adopted the two princesses on behalf of their father."
"But I clearly saw the two new princesses call Ryuya-sama 'Father'!"
With good grades, outstanding looks, and an unclear relationship with one of the freshmen campus belles, Yukino, Ryuya had somehow been dubbed 'Prince' by the female student population at Shuchi'in University.
As the cafeteria incident began to ferment, all sorts of endlessly emerging rumors about Ryuya instantly ignited the entire Shuchi'in University.
Some even heard that the two transfer students in the Economics and Management department were born from Ryuya himself… that Prince was advertising himself as hermaphroditic.
Shocked, shocked for a hundred years, shocked for ten thousand years.
Inside the clubroom, looking at the two princesses exuding peerless beauty and dazzling aura, Eriri expressed her inability to comprehend.
'What in the world is all this? Altrouge and Arcueid look about the same age as me. How could Ryuya possibly be their father? It's just impossible!'
However...
"Altrouge, Arcueid, was it Hope and Crimson Moon who sent you here?"
While his own strength progressed, Ryuya was also investigating various supernatural forces in the real world.
Having confirmed that his world contained elements from the CLAMP Universe like the Clow Cards, he hadn't detected the presence of Alaya or Gaia in the current real world.
In other words, the multitude of forces in the real world were too complex, so Gaia and Alaya either never formed or had long since disappeared.
But regardless of the possibility, the world barrier of the real world was clearly not very strong. Breaking through the world's separation to travel through time and space wasn't impossible.
Hadn't he already left a coordinate in the Snowfield City of the Fourth Holy Grail War? By the same logic, if it were Crimson Moon and the Machine God Hope, simply sending Altrouge and Arcueid, whose power wasn't strong, at least not yet at the planetary Ultimate One-level, was absolutely not an impossible task.
"Papa, Mother and Sister Hope sent us."
"Mother said we could find you here, Papa."
Not expecting to find Ryuya as soon as they arrived at Shuchi'in University, Arcueid and Altrouge felt they were girls blessed by the goddess of fortune.
Greedily clinging to Ryuya without letting go, for Arcueid and Altrouge, being able to return to their father's side was their greatest fortune.
"Oh, I see."
Chatting with his daughters about the Eternal Night Empire, time flew by, and soon it was time for afternoon classes.
"Papa, Papa, can you take us out to play?"
Although they had Ryuya's company back in the Millennium Castle, the tense atmosphere meant Arcueid and Altrouge had zero contact with the outside world.
Now, having come to Ryuya's world, their minds were filled with knowledge of modern society. Naturally, they wanted to have a good time playing with their father.
"Go out to play?"
Tilting his head to look at his grown-up daughters, Ryuya certainly had no reason to refuse.
They directly skipped afternoon classes. None of them cared about such a small matter, not even Yukino.
But one person was different.
"Why... did I come out with you guys?"
As a quite 'self-disciplined', 'law-abiding' good student, Eriri had never encountered anything like this. She was somewhat shocked by the act of skipping class, but what was even harder for her to accept was that Altrouge and Arcueid really were Ryuya's daughters.
'My God! Could this guy, who looks about the same age as me, actually be a forty-year-old uncle? And what's his purpose being here? And Yukino, why doesn't she seem jealous at all? Those are your brother's daughters! Aren't you a fanatical bro-con?'
Completely unable to understand what was happening, while Eriri was still thinking, she found herself somehow already out with Ryuya and the others.
"Eriri, try this."
Holding a fruit salad, Yukino fed a piece of melon to Eriri.
"How does it taste?"
"Very sweet."
Subconsciously nodding, Eriri suddenly came to her senses, 'What was I doing?'
"Hey, Yukino."
"What's up?"
"That... those Brunestud Sisters, do you really know them? Or is your relationship not what I think?"
Feeling the need to have a proper chat with her recognized good friend, Eriri always felt the way these people interacted was strange.
'What with brothers, sisters, fathers, daughters... what kind of strange play was this?'
"Ah, you mean Arcueid and Altrouge? I know them. They really are Onii-chan's daughters."
Having heard about the Eternal Night Empire from Ryuya yesterday, and having experienced the Fourth Holy Grail War, Yukino had actually long since figured things out.
Before the entity called the King, her own existence was blessed. Having completely become unable to leave Ryuya, it was better to abandon all reserve and properly follow her beloved.
As long as the 'sisters' were good to her, and her Onii-chan loved her, that was already Yukino's happiness.
As for other matters, she didn't really care. The only person in Yukino's sight was one man. She never bothered thinking about others' opinions.
Reflecting on her current life, after getting past the initial discomfort, Yukino actually found it quite enjoyable most of the time.
After all, without Souji's help, her physical constitution would have had a hard time satisfying Ryuya.
Thinking of this, Yukino suddenly remembered the King of Heroes and Artoria, etc.
If, after some time, they were to meet again, they would have to continue that unfinished third competition.
But before that...
Recalling how Kaguya and her sister came over for dinner every night recently, Yukino never doubted whether these two would become her 'good sisters'.
Pondering whether she could recruit another external ally, she turned her gaze towards Eriri beside her.
"Yukino, you... what's with that look?"
Feeling blatantly assaulted by her good friend's gaze, it looked like she was scheming against her, Eriri felt a chill.
Not understanding why, looking at Yukino, Eriri subconsciously took a few steps back.
"Ah, Eriri, I want to ask you something."
"Hmm?"
Blinking, Eriri didn't know what Yukino wanted to do.
"Eriri, let me ask you, what do you think of my brother?"
Pointing at Ryuya, who was still playing with Arcueid and Altrouge not far ahead, Yukino felt it was time to go all out.
As her brother's best little sister, she needed to start looking for true good sisters and form a luxurious grand alliance to stand against the King of Heroes and the others.
It had to be done!