After Geto decided to follow his own path, you sticked with him since then. Actually, after he saved you. You were also "rare", you had a special curse technique that Geto admired. In his eyes, you were extremely strong. Gojo, his best friend, killed him. Weird enough, you saw later Geto standing in front of you, with stitches on his forehead... a curse. You made a deal: kill Yuji, free Geto. Kenjaku was somewhere else in Shibuya, observing every fight between every student, Sensei & curses.