Kaji Daikou no Arbeit wo Hajimetara Gakuen Ichi no Bishoujo no Kazoku ni Kiinirare Chaimashita.

家事代行のアルバイトを始めたら学園一の美少女の家族に気に入られちゃいました。

by Urua, Shiohon

Harusho Ootsuki lost his parents when he was young, and his grandmother took him in and taught him housework and cooking. Harusho uses his skills to start a part-time job as a housekeeper during the summer vacation of his second year in high school. The story begins when his first client turns out to be the home of the most beautiful girl in school. (Source: Natalie, translated)