The Yakuza's Guide to Babysitting

Kirishima is summoned by the head of the Sakuragi Family and is tasked with taking care of his only daughter, Sakuragi Yaeka.

Kirishima gradually gets used to his job as Yaeka's caretaker.

Kirishima and his buddies become streamers.

Kirishima Toru is a yakuza known as "the Demon of Sakuragi;" the boss of the Sakuragi family appoints Kirishima to be the caretaker of his only daughter, Yaeka.