Imagine it's 16!Sokouku, and Chuuya's finally found the key to fuck with Dazai, aka tickling him half to death.
Chuuya wants to take revenge on this little shit for, y'know, being a little shit-
SO THE NEXT DAY, they're at Chuuya's apartment, Dazai's begrudgingly doing reports while Chuuya's out of his line of sight, which is the first warning sign. Chuuya's creepin' up on him, ready, fucking ready-
And then he just dives for his waist, straight up rip a scream out of that boy from ticklishness and fright.
They get into a little squabble and Dazai's at least able to slink away, which causes a whole ass chase around the entire house. They're knocking over furniture, spilling report papers everywhere, Dazai's slipping and sliding on his socks and Chuuya is MOTIVATED.
Bitch runs out the house with no shoes on. Chuuya breaks down laughing but he goes after him in slippers anyways.
And then proceeds to tackle him to the ground and tickle him to pieces on the sidewalk-
EVERY SINGLE ONE OF YOUR IDEAS IS LITERALLY GOLD
SCREAMING THIS IS SO CUTE