Yakuza Lover, Vol. 4, 4

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 relationship faces complications when Oya's father, the boss of the syndicate, issues a warning to Yuri, demanding she cut ties with Oya and the yakuza. When Oya finds out, the situation becomes charged. Meanwhile, a mysterious woman enters the fray, soon to add new challenges to the star-crossed couple's growing love.