i'm so confused lmao
1. Yuji has learnt RCT (over the month before the fighting)
2. Ui Ui has been removing the injured/dead from the battlefield with teleportation
3. Sukuna thinks Gojo is dead for sure
4. Sukuna acknowledges Yuji's "indomitable soul" and has a midlife crisis over not being excited to fight him
5. Sukuna is now in charge of the merger thanks to a new rule from Kogane (Kenjaku's thing about his will living on)
6. Yuta joins the battle