Poe and Ranpo were rivals. Anyone could tell by the fact that they were always spewing insults at each other. And when they were working together by some miracle, they were complaining about it.

So here they were, with Poe holding a gun to Ranpo's head as he pulled him into a deserted alleyway

"Ranpo Edogawa. What the hell are you doing out here at this hour?"

Poe asked, pressing the gun further against Ranpo's forehead