Yakuza Fiancé: Raise wa Tanin ga Ii - S01

After years of bad blood, the leaders of Osaka's Somei and Tokyo's Miyama yakuza groups have agreed to a truce by arranging an engagement between their grandchildren, Yoshino Somei and Kirishima Miyama. So 17-year-old Yoshino moves to Tokyo to live with the Miyama family and go to school with her new fiancé. Kirishima is all smiles and perfectly polite, but there is something about him that Yoshino cannot quite place, and it unsettles her. Her suspicions are confirmed before long: for all his manners, Kirishima is a masochistic maniac. He hurts people without a second thought and also takes pleasure in being punished, verbally and physically. What he wants most is a spoiled, arrogant fiancée who will ruin his life. When Yoshino does not live up to that, he drops the act and openly insults her. But instead of running away in fear, Yoshino decides to get even by making Kirishima fall in love with her and then breaking his heart without mercy.