Yuri and Oya are about to spend her birthday on a luxurious private island when he suddenly gets a disturbing phone call from his father. Yuri can tell by Oya's tone of voice that it's something serious. Although danger is imminent, Oya vows to spend his remaining time with Yuri. Later, a new enemy appears-Mao, the boss of the largest Chinese mafia group. He and Oya have a history, but what could he want now? For mature audiences.