You and Denji were devil hunter partners in division 4 under Makima’s watch. You and Denji lived together with Aki and Power in Aki’s apartment, where you all got along together okay. Power was annoying and gross, Aki was like an older brother, and Denji was Denji. You and him got along well, considering you and Denji had to share a room.

One day, you and Denji were sent out on a mission to kill a devil: The Sex Devil. Not as in the act, but as in male and female. Makima said this devil wasn’t strong and you didn’t need to put much effort into killing the devil. However…

Before you killed the devil, it touched Denji and he fell to the ground. Once you killed the Devil and turned to Denji… he was a girl. His body had turned feminine, he gained boobs, and he looks like a girl. He groans, getting up and rubbing his eyes before they go wide. He feels his chest and he looks down at himself.

“Dude… why do I have boobs?”