Manga Yamada-kun and the Seven Witches

Ryuu Yamada was considered an extremely hot-tempered bully who constantly skips lessons, bullying others, which made everyone afraid of him. However, he will soon collide with the best student in the school on the stairs, causing both of them to fall and lose consciousness. Waking up in the infirmary, they will understand that it turned out that they have changed bodies! Now they are teaming up to deal with everything that happens. Pretty soon they will realize that other people in school have unusual abilities as well. What's even more interesting is that they show up when people kiss!