The Yakuza's Guide to Babysitting

Kirishima Tooru 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!

(Source: Crunchyroll, edited)