Yakuzayankees

School Yankee x perfect student

Not Yakuza but crime

Still have to read

Yakuza/omega verse story

Look like yakuza but aren’t yakuza

Delinquent x delinquent

Taichi has a split personality and isn’t aware of this. His other him is a top delinquent that wins all fights and is the top dog of his school, however because taichi isn’t aware of all this he often gets in confusing situations. He only learns of his split personality when Mitsuru, the top delinquent of another school, takes an interest in him.