You Are My Princess by Hiroto Kujirada

Summary

Plot: Itsumi Tachibana hates fighting. He’s a student at a fancy high school who loves visiting cat cafes and collecting kitty-themed merchandise. Despite that, he looks like a gangster, which alienates him from his classmates, making him a magnet for unsavory characters outside of school. One day, the unthinkable happens: the popular, brilliant, and beautiful student body president, Seima Takajou, professes his love for Itsumi! This is a romance between complete opposites: a popular hot guy and his scary-but-sweet Cinderella!