Kunikida the narrator:

Another day with Kyouka and Q, remembering something from 4 years ago

Kyouka: oh Yumeno san look over there
Q: hm???
Kyouka: its Dazai san and Chuuya san
Q: ohhhhh... You remember what Koyo said?

________________________

Koyo: Chuuya and Dazai being together is a bad combination, Chuuya is a generous person, i know he is but sadly hes also a bad influence for Dazai, it be better if we keep this to never happen

________________________

Kyouka: Chuuya san is a bad influence for Dazai san
Q: oh than its our job to take him away from the bad influence
Kyouka: mh!

Dazai: and than Kunikida just broke his own glasses lol
Chuuya: you really can't go 1 day without pulling some dumb joke on a mission can't you?
Dazai: nope~
Chuuya: well-
Kyouka: Dazai san
Dazai: oh hey Kyouka
Kyouka: me and Atsushi are going to go shopping, can you come with us? We want to get alot of things but their all on high places...
Dazai: oh sure, i need to buy new bandages anyways, see ya later Chibiko~!
Chuuya: huh???

As the 2 leave, Kyouka turn around and give Chuuya a dark grin then proceeds to walk away with Dazai

Meanwhile with the younger Dazai and Chuuya

Chuuya: can't believe of all the things, your stubborn at eating food, no wonder you look like a walking skeleton
Q: heeeeeeeey! Dazai!
Chuuya: ha?
Q: hey, hey, hey! C'mon! Lets go play! I'm bored! Rintaro dosent even bother to play with me!
Shuji: but what about...
Q: who cares! Hes old so he can play by himself! Lets go!
Shuji: hold up...
Chuuya: uh... 💢

Later at the port mafia
Chuuya is pinching Q cheeks

Chuuya: what the hell do you think your planning twerp?!
Q: owww! Hey! Hands on you small shrimp!
Chuuya: ha?! Oi! Looks who's talking! Your smaller than i am!
Q: well at least I'm as tall as people my age!
Koyo: now why on earth are you bickering with this child Chuuya? He only just got out of prison
Chuuya: and I'm going to throw him back in it! This little twerp keeps pulling my leg and use every excuse in the book so Dazai and i don't talk!
Q: hey! I only did that bcz your a bad influence for him!
Koyo: oh... Oops...