Mangas

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
Fantastique,  Shojo Ai
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