for the megumi and the world's most inconvenient custody battle, i just head canon geto and gojo screaming at each other in front of kfc (AGAIN) and the conversation goes something like:

Geto: I HAVE MORE EXPERIENCE I HAVE TWINS AT HOME ILL BE A BETTER PARENTAL FIGURE THAN U!

gojo: THATS MY BABY I CHANGED HIS DIAPERS! HE CAME OUTTA MY WOMB! GIVE HIM BACK!

megumi and the kfc workers are so so done someone get these gay men couple therapy pls

i have so normal feelings for ideas i totally dont think about them every single day.

The funny thing is that Megumi actually have no awareness of Gojo at all during the custody battle due to the intricacies of the binding vow (there's a clause where Megumi has to kill himself if Gojo intervenes at all during the span of the agreement. Geto wanted the clause to be that Megumi has to kill his sister, but Megumi threatened to kill Geto and then himself if he made that the clause. Geto doesn't actually want to make Megumi kill himself, it's just a dead man's switch to keep Gojo from swooping in and ending the entire thing prematurely. There's nothing Geto can do to actually stop Gojo, but he can deter Gojo with the consequences of a binding vow which even Gojo cannot break, and he knows Gojo won't actually risk his son, so he'll let the entire thing run it's course naturally). So it's just:

Megumi: *very grumpily going ice skating with Geto's twins because he's under binding vow to play nice and cooperate with the cult members during the terms of the vow*

Geto and Gojo, squatting behind a vendor's cart: *having the world's quietest and most hostile divorcee bitch fight*