Yuri and Oya are about to spend Yuri’s birthday on a luxurious private island when an unexpected phone call from Oya’s father ruins their plans. A new enemy has appeared—Mao, the boss of the largest Chinese mafia group—and he and Oya have a history. Although danger is imminent, Oya vows to spend whatever time he has left with Yuri. But he can’t help but wonder what Mao could possibly want…