it's highschool romance and slice of life and the best current mango in terms of fluff
here's the summary:
In a certain place, there are two neighboring high schools. Chidori High School, a bottom-feeder boys' school where idiots gather, and Kikyo Girls' School, a well-established girls' school. Rintaro Tsumugi, a strong and quiet second year student at Chidori High School, meets Kaoruko Wakuri, a girl who comes as a customer while helping out at his family's cake shop. Rintaro feels comfortable spending time with Kaoruko, but she is a student at Kikyo Girls, a neighboring school that thoroughly dislikes Chidori High. This is the story of two people who are so close and yet so far apart.
you might think this is like Kishuku Gakkou no Juliet, but I guarantee you it is not like it. very recommended ❤/10