really doing a bare bones description... but it's like two highschoolers and one of them lives like. in a market and the shop is downstairs but the house is upstairs? and he has a cat. i can't remember what they look like at all but im pretty sure they were like childhood friends who grew apart but then started getting closer... idk... i hope this is enough
Sound like that :D
https://www.mangago.me/read-manga/bokura_no_tsuzuki/
love this manga soooo much. Omfg.