The story of Dazai Osamu and Y/N Nakahara Y/N Nakahara the younger twin sister of one of the strongest Members of Port Mafia, Chuuya Nakahara.... Y/N was one of the most strongest because of her/his Ability...Until her plan was found out by Mori...What could her plan be?.....She doesn't want to leave Port Mafia because of Her/His Brothers promise....... 🚨In This Au 🚨 * Both Y/N Chuuya and Dazai grew up being abused by Mori *Chuuya and Y/N is the same age as Dazai