Tsukasa Tenma is the head of the mafia. Tsukasa's organization is very large and has many debtors, who most often die at his hands. Rui's parents were also mired in debt to the organization, and Rui didn't know that. His parents ran away and Tsukasa was only able to find their son, who would have to do something. Tsukasa is quite cruel, and most often does not spare debtors.Rui's parents owe more than 30 million yen