Tooru Kirishima is 28 years old and the wakagashira of the Sakuragi Group. He's known as "The Demon of the Sakuragi Group" because he uses his position as a yakuza as an excuse to do whatever he wants. But one day, he ends up in charge of his boss's daughter?! An independent young lady and good-looking yakuza brute's heartwarming(?) comedy!

Kumichou Musume to Sewagakari is based on a web manga which was posted on the author's Twitter and pixiv accounts under the title "Gokudou Musume to Sewagakari" (極道娘と世話係).

The series has been published in digitally English as The Yakuza's Guide to Babysitting by Kaiten Books since February 12, 2021, and in print since July 20, 2021.