isadufu
A Port Mafia executive decided to pay the Armed Detective Agency a surprise visit in broad daylight. But this time, they didn't come armed and they didn't come to fight. And they certainly didn't come with a whole squad of men at the ready. In fact, the Port Mafia executive only came here to apparently...sleep on the couch..? And..be cuddle by.....by Dazai???
What is going on??
Atsushi, Kyouka, did you now about this?? Ranpo, why didn't you tell us sooner!?
Or the Armed Detective Agency find out that a member of the Port Mafia has been constantly visiting their office for a while now with the permission of even the president, and was probably at the request of the one and only Dazai Osamu.
Also in Ao3, username is @Saha_haha_no (I think)