Y/N Dazai, the sister of Osamu Dazai, the traitor of Port Mafia. She and her brother both came to Port Mafia at a young age and was trained by Mori to be his right hand and left hand person. After a while Chuuya Nakahara came and the three of them was known as the Trio of Death. Chuya and Dazai, Twins of Dark, while Y/N , Angel of Death. The trio was inseparable until Dazai chose to leave the organization... _____ "Let him go Chuuya" "Why should I. He betrayed the organization and us Y/N ." "If you don't let him go, I have no choice but to make you."