Houkago, Famiresu de, Class no Ano Ko to.

Overview

After school, a family restaurant is the only place where I feel comfortable, because I feel like I've lost my place at home after my mom remarried. At the restaurant, I saw a classmate, Kohaku Kasemiya, who is a beautiful girl, but she seems to be a loner who doesn't hang out with anyone else. She is also having problems with her family. Wasting time at the family restaurant became a fun experience, now that I have Kohaku to talk to. At the family restaurant after school, the two of them search for a reason to not go home. (Source: Kadokawa, translated)

Source: AniList