Wow, it's not the deepest stuff I've ever seen (not even close), but sometimes this manga really surprises me with some maturity. It's funny how it started with Tobio wanting a normal life and now all four are in such complicated places in their lives.
I wonder what can Isami do, really. If Koyoi is for real (W her btw, I'm honestly impressed), it wouldn't matter even if he's found a job and a way to support her. If he goes to jail though, he will miss the most crucial parts she'd need him to accompany her at.
Duh, unless it somehow gets diluted, him coming out would probably mean a death penalty. And tbh, they might not even take him, because the police and justice system don't want to be looked at like they're a bunch of morons to go back on their statements TWICE.