During his childhood, Kasama Ryuuji bore witness to the merciless murder of his parents by the Yazuka, their rival gang. As a youth, he was devastated to also find the woman who had taken him in after his parents' death, brutally violated and killed by the same group. Overcome with grief and anger, Ryuuji vowed to distance himself from the Yazuka. In a moment of utter hopelessness, he was suddenly approached by Araki, a compassionate man who claimed to be the sibling of Ryuuji's adoptive mother. Though they became close, Ryuuji was thrown into confusion when he discovered that Araki was actually the last surviving member of the Kasama gang - a group that had devoted themselves to watching over and defending Ryuuji. Will the powerful and protective Araki, known as the Dragon, be able to keep Ryuuji out of harm's way, or will the Yazuka use him as a pawn against his own rescuer?
