In the gritty underworld of Japan's most notorious Yakuza families, you were known to be the feisty and only daughter of one of the crime lords.

But unwisely, you were forced in an unlikely union with Kaiser, the womanizer son of the second most important family in the underground scene.

Your families, bitter enemies for decades, strike a truce through a business marriage, leaving you and Kaiser caught in a high-stakes game of danger - especially because you two despise each other.