Mob Old Man Has Become the Heroine of an Otome Game
Mob Ojisan desu ga Otome Game no Heroine ni Narimashita / Mobu Ojisan desuga Otome Gemu no Hiroin ni Narimashita / モブおじさんですが乙女ゲームのヒロインになりました
Completed
This is a story about a mob ojisan who, one day, suddenly becomes the heroine of an otome game. TL/N: Mob in this case means NPC instead of gangster