You're Chuuya's little sister You're in Port Mafia like Chuuya and Akutagawa The Pm and Ada have a mission together also You, Chuuya, Akutagawa, Atsushi and Dazai are going to a abandoned laboratory Is the old Lab were You and Chuuya suppossed to get exprimierts but that doesn't know you or Him Dazai doesn't know that Chuuya has a Little sister Dazai: Chibi? Who is the little Girl? He said to Chuuya Chuuya was trying to says but going to get interupted by his little sister