Rinya is the son of the head of the Hanayanagi-kai, a mid-level yakuza clan, and works as a safe keeper. He is the next head of the Hanayagi-kai,
Rinya has always been frustrated by his father and the clan's policies.

One night at a bar, he is drugged by a young foreigner and forcefully embraced at a bar.

A few days later, he is introduced to his cousin Eduardo, a mafia member who has come to Japan from Italy.

He introduces him to his cousin Edoardo, a mafioso from Italy who has come to Japan, but to her surprise, he is the young man in question...?