Masamune-kun's Revenge R

Eight years ago, Masamune Makabe, who was overweight and weak, changed his surname and turned into a handsome man in order to take revenge on Aki Adagaki, a cruel princess who once treated him harshly. His revenge plan was to make her fall in love with him and reject her. His plan was working, and Aki gradually opened her heart to Masamune; they even kissed at the cultural festival. Time has passed, and the stage is set for revenge during their school trip to France. Masamune finds his heart beating faster while roaming the romantic atmosphere of Paris, and Aki tells him that she thinks it's finally time they have a serious talk. But then, he meets Muriel Besson, a French girl who aspires to become a manga artist. She could throw a wrench in his whole plan.

Synopsis from Anime News Network