Tsubaki's the granddaughter of the head of the Kiryu Clan, the biggest yakuza organization in the Kanto area. She's also in love with Kujou, her grandpa's right-hand man. She saved his life 13 years ago, and ever since, he's been a faithful member of the clan. But, what Tsubaki wants isn't for him to be with her because she saved his life or her relation to the head of the organization. She wants Kujou to love her as a woman. Unfortunately, Kujou keeps treating her like a little girl, and she doesn't know what to do. But, one day, her grandpa gives her a very important role... a role that will determine the fate of the Kiryu clan...!! A heart-pounding love story about a mature, older right-hand man and the granddaughter of the head of a yakuza clan!