Forget the title. Looking for manga about stepsiblings

[Symuri]

Both male lead and female lead are independent and cool-headed. The male lead works in a bookstore and has fat male friend. The female lead is gyaru (?) and has no friends because all the schoolmates think she's a whore. I remember the last update I read the female lead is starting to work in the male lead's workplace.

 

[Symuri]

Found it after I desperately skimmed mangaupdate. It is: https://mangadex.org/title/99daf7bc-3a3b-4fe8-b10d-951b32bfea64/gimai-seikatsu