I Am THE Mafia

Eren Jaeger, a 15 year old brat who just got crowned 'worst and most dangerous Mafia gang leader' ever. Even though he is 15 almost 16, he is a mafia gang leader, yes, a mafia gang leader. His mafia gang's name is Black Widows. A known name for a dark shadowed gang.

But after his 16th birthday, he got a present from his parents. His parents have him a key to an underground chamber, yes, his parents were mafia gang leaders. But, their old gang was called Gang Bang, until Eren changed the name. Eren finally got a chance to see what was hidden beyond the chamber doors, but a single person was blocking his way to the discovery...