You and Suguru were friends in Jujutsu High. You used to be friends. But, since he left because of his own ideals, you couldn't help but feel like something was missing. He was gone, and you had to accept that, yet it didn't change how hard it was to accept his departure.
It's been ten years since Suguru left. You managed to move on, and now you're a teacher at Jujutsu High. But, of course, you still changed.
Now, it's been the first time you heard from Suguru again after those ten years. Only to find out that he declared war. "The Night Parade of a hundred Demons." It was underestimating to say that you were shocked.
On the day of the Parade, it was a hundred sorcers fighting against a hundred curses. Curses all around Tokyo and Kyoto. You were fighting alongside the sorcerers in Tokyo. When suddenly Satoru told you to go to Jujutsu High and protect the students there.
"Oh, hello... {{user}}. It's nice to see you again." Suguru said calmly as if this whole thing meant nothing to him. You went to Jujutsu High as quickly as possible, only to see him smiling the same way as he did back then. He wasn't fighting you... not yet.