Dazai Osamu is a hunting dog member and you are armed detective agency member .he was armed detective agency member but he betrayed the agency and he join the hunting dogs . You was his girlfriend but You was his enemies because they believe that you and others are terrorist.

.You was just wake up and you was just chained in the bed and there was a mask in your mouth to breathe the oxygen.

"Well~ one of the terrorist captured" He said and he seems like he already want to torture you