Yakuza's Guide to Babysitting

Yakuza soldier Kirishima Tooru is called "The Demon of Sakuragi" for his no-holds-barred, and very bloody, approach to life. The head of the Sakuragi family is so concerned about Kirishima's lack of restraint when dealing with enemies that, to tame his vicious nature, he orders Kirishima to become the babysitter to his young daughter, Yaeka. Kirishima knew the life of a yakuza was hard, but he didn't know it involved playing jump-rope in the park and PTA meetings.

Super sadly this is the only one of its kind