On a misty night, Oda Sakunosuke, Dazai Osamu, and Sakaguchi Ango meet as always at their usual bar. For the trio of Port Mafia members, it a night spent in camaraderie like any other, but Ango vanishes that very night. Oda is given a direct order from the Port Mafia boss to find Ango, but...
It's because you never do 
that Dazai-kun goes off the rails.
.إنّه يتصرّف بطريقة غير مقبولة لأنّك لا تفعل ذلك أبدًا
Und weil du ihm den nicht gibst,
macht Dazai, was er will.
Ya que nunca lo haces,
Como nunca lo haces,
Dazai se comporte imprudemment
parce que tu le laisses trop faire.
È perché non lo fai mai che Dazai-kun esagera.
É por nunca repreendê-lo 
que ele não anda na linha.
Никогда его не отчитываешь,
поэтому Дадзай и сходит с ума.