Yakuza Fiancé: Raise wa Tanin ga Ii

Somei Yoshino is the granddaughter of Renji Somei, the formidable patriarch who leads the Somei Group, the most powerful yakuza syndicate in the Kansai region. When Renji arranges a strategic marriage between Yoshino and Kirishima Miyama, she is uprooted from her familiar surroundings and sent to live at the Miyama Clan estate, home to the dominant criminal organization in the Kanto region. Thrust into an unfamiliar and intimidating environment, Yoshino initially struggles with deep unease about her new life among strangers. However, her anxiety quickly begins to fade thanks to Kirishima himself. He greets her with genuine warmth, presenting himself as an exceptionally pleasant, charming, and polite young man. His impeccable demeanor is so disarming that no one would ever suspect he was born into a ruthless yakuza family. Under his welcoming presence, Yoshino finally starts to feel at ease in her strange new home. Yet this comforting illusion is fragile. A sudden, unexpected event shatters the carefully maintained facade, forcing Yoshino to witness the true nature of the man she is destined to marry.