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's romantic getaway in Shanghai is cut short when sinister Russian mob boss Semilio kidnaps Yuri and tries to make her his own. But Yuri won't be won over so easily and fights off his advances. And then Oya suddenly comes to her rescue! With Yuri finally out of harm's way, Oya charges headfirst into battle against Semilio, leaving Yuri to wonder if he'll make it out alive.