Yakuza soldier Kirishima Tooru has a very bloody, approach to life. The head of the Sakuragi family is so concerned about Kirishima's lack of restraint, he orders Kirishima to become the babysitter to his young daughter, Yaeka.

Kirishima Toru was accustomed to solving all problems through violence and was called "the Demon of Sakuragi." One day, the boss of the Sakuragi family suddenly summons Kirishima and appoints him caretaker of his only daughter, Yaeka. A heartwarming comedy about a yakuza crime family's right-hand man and the boss' only daughter. The two of them are about to begin their new daily lives together.—Crunchyroll

Kirishima Tooru is such an evil 'Yakuza' that he has earned the nickname 'The Demon of Sakuragi'. In order to control him, the boss suddenly gives him a new task - to look after his daughter!". The heartwarming comedy of the young boss and the team leader's only daughter - A brand new daily routine for the two begins.—Bilibili TV