When feisty college student Yuri is attacked at a party, she's saved by Toshiomi Oya, the underboss of a yakuza syndicate. Despite her obvious attraction to him, she convinces herself that she's not in the market for a bad boy type. But when they meet again, she finds herself irresistibly drawn to him--kicking off a steamy and dangerous love affair that threatens to consume her, body and soul.

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...