After bringing Sasaki-senpai and Iguchi-senpai to safety, Fushiguro and Itadori quickly rushed to the school building's rooftop, where the Cursed Energy was densest and constant loud noises were coming from.
When they reached the rooftop, they finally understood why they had barely encountered any Curses on their way through the school. It seemed that all the Curses from the entire school, and even the surrounding area, were concentrated right there. Not only was Itadori, who had never seen anything like this, stunned, but even Fushiguro, a Grade 2 Sorcerer, froze at the sight of the huge number of Curses of varying grades covering the entire rooftop.
Although the Cursed Energy level suggested no terrifying Special Grade Curses had appeared, the sheer number of Curses was impossible for a single Grade 2 Sorcerer to handle. Besides the multitude of Curses, Itadori and Fushiguro also saw the only human present, Seiya, heavily surrounded by the Cursed Spirits.
"We'll work together to rip open a path to save him. Sorcerers who specialize in using Shikigami aren't usually strong in other areas. His Shikigami just went to protect your senpais, and the others were probably defeated in the siege. We're running out of time! If we don't act now, the Curses here might actually kill him!" Fushiguro gave instructions to Itadori while summoning his two Divine Dogs and Nue, preparing to force an opening in the Curses' ranks to save Seiya.
Itadori was about to say something, but Fushiguro cut him off again. "My Divine Dogs and Nue will work with you to save him. After that, you must buy me some time to re-seal Ryomen Sukuna's finger. Otherwise, with this number of Curses, we won't be able to escape."
After sending Sasaki-senpai and Iguchi-senpai out of the school, Fushiguro and Itadori learned that the Sukuna finger was with Seiya. Before coming to the rooftop, Fushiguro had gone to the classroom where Seiya and the others were and picked up the removed talismans. With too many Curses attracted by the Sukuna finger, eliminating all of them was unrealistic. The best solution was to re-seal the finger, which would cause the gathered Curses to disperse.
But just as Fushiguro was about to act, an action by Seiya, who was in the middle of the Curses' encirclement, completely shocked him. Fushiguro believed that since Seiya could command a powerful Shikigami like the "Tail-fire Tiger," he must be at least a Grade 2 Sorcerer and possess corresponding combat experience. The best course of action for Seiya right now would be to defend himself fully and wait for their rescue. However, to Fushiguro's surprise, when Seiya saw them, he didn't choose to defend but instead launched a proactive attack!
Even if you wanted to break out and meet us, you should charge in our direction. Why are you running the opposite way? What are you doing?
"Wenren-style Martial Arts: Sky Sound!"
As Seiya threw a straight punch, a sharp sonic boom instantly erupted in front of him. The powerful punch created an invisible sonic column, as if instantaneously squeezing the air, and shattered the Curses in its path. Since Seiya had been surrounded, the Curses at his back and sides seized the opening and lunged at him as he punched the ones in front.
"Shikigami Summoning: Azure Dragon - Horned Dragon!"
"Whoosh—!"
Following Seiya's clear and loud invocation, a barrier of wind suddenly rose from the ground beneath him. The weaker Curses that crashed into the wind barrier were instantly shredded by the sharp air currents. The stronger Curses were not instantly killed like the low-grade ones, but they were all repelled by the wind field swirling around Seiya.
"Roar—!"
Just as the strong winds around Seiya intensified and completely engulfed his figure, a loud dragon roar suddenly came from within the strong winds. A dragon's claw tore through the strong wind, and a graceful, streamlined figure soared into the sky. When they saw Seiya standing on the ferocious dragon's head, looking down at the multitude of Curses, both Itadori and Fushiguro were dumbfounded.
"Uh... Fushiguro, do we still need to stick to your original plan? I feel like even without our help, Seiya is perfectly fine."
Hearing Itadori's ill-timed comment, Fushiguro's face flushed with embarrassment. As a genius who was ranked as a Grade 2 Sorcerer upon entering Jujutsu High, he had lost count of how many times he had been proven wrong today. Earlier, he said that only professionals could deal with Curses and that Itadori's "strong" friend was useless. Now, that "friend" was a powerful Sorcerer. When they arrived at the rooftop, he said Sorcerers who use Shikigami are usually weak in other areas. Now, Seiya had counter-attacked with a punch that created a vacuum, instantly destroying multiple Curses.
"Is your friend's last name Zenin?" Fushiguro asked Itadori, watching Seiya, who was riding the dragon Shikigami and soaring into the sky.
The Big Three Sorcerer Families—the Gojo, Zenin, and Kamo—were all highly prominent in the Jujutsu world. The Gojo family was known for the Limitless technique but was now almost extinct. The Kamo family specialized in creating and using various Cursed Tools. The Zenin family was proficient in summoning Shikigami for battle, and many members of the Zenin family were also skilled in physical combat. Fushiguro knew of Maki Zenin, a student at Tokyo Jujutsu High, and the current head of the Zenin clan, Naobito Zenin. Although Fushiguro had never seen the specific Shikigami or the martial arts that Seiya used, the similar combat style made him wonder if Seiya was a member of the Zenin family.
"Zenin? No, no, no. Seiya's last name is Wenren. And like me, he doesn't even know who his parents are. He grew up in an orphanage."
Hearing Seiya's background, Fushiguro fell silent. Although he used the Zenin family's Ten Shadows Technique, his last name wasn't Zenin; it was Fushiguro... Seiya grew up in an orphanage. Perhaps he had a similar past to his own?
Of course, examining Seiya's background was pointless right now, because under the gaze of Itadori and Fushiguro, Seiya, riding the Horned Dragon, had flown hundreds of meters into the air!