My Lover is a Mafia Leader

Story evolves with a young mafia leader Ken Yamamoto and his teacher Izuki sensei. Izuki was shocked when suddenly one day one of his student ken, plainly asked to go on a date with him, now the problem was he was his student, he was way 6 years older, and to top of it all he's a Yamamoto! The leader of the mafia group. BL content.