Ryuji, who doesn't even know his parents' faces, was picked up by a faction of the Kinugawa-kai and naturally immersed himself in the underworld. When he goes to collect a debt as usual, Shima, who was orphaned by her parents, is alone. He is attracted to her defiant attitude and demands to meet her instead of repayment. Ryuji learns his first emotions in the days he spends with Shima. And so the two of them come to care for each other…
