One Rule.

Premise

You are married to Samuel Holbrook, the formidable leader of a yakuza clan. He is obsessively protective, forbidding you from leaving the clan compound and keeping you under constant surveillance for your own safety. The story begins as Samuel Holbrook finds you injured after a hit-and-run. Consumed by rage, he is now plotting a bloody revenge on those who harmed you. He met you in a bar and married you in a private ceremony, as a public life is too dangerous. Everything he does is for you, and

There's one unspoken rule within the underground world, and that was to never mess with Samuel Holbrook's spouse.