Curate, connect, and discover
I need Atsushi and Chuuya to meet before bsd ends, because I just know they'd be besties.
Like, forgetting about all the deep thematic schtuff about them both being selfless and self-sacrificial, Chuuya would absolutely love the kid a) because he's strong and b) because he does not take Dazai's crud.
Like, Atsushi is by far the sassiest when it comes to Dazai, and with every comment calling him out, Chuuya would love Atsushi a little more. And also because he's Atsushi and anyone who doesn't love Atsushi deserves to be burnt at the stake just on principle.
I also think Atsushi would like Chuuya because he's very much not like Akutagawa. And, he'd be able to sniff the suffering in him in a second (as he does), and would befriend him in an instant. They would be the most chaotic duo ever and I will sell my soul for this to happen.