I forgot the title of the manga. It is about a girl who wants friend but she can't because she is shy and also plain looking girl- she is always in chibi form and also wear glasses (but when she remove her glasses she become cuter -like a normal girl not in chibi.) The girl and the ML became friends and started dating (pretending to be dating but became a real couple later on). There is a scene where the ML lost his memories because of an eraser or tofu (i forgot but its between the two.) that hit in his head. He forgot everything. He also treat the girl as a stranger. The girl tried him to remember her. She joined a beauty contest in their school and confess her feeling to the ML. The ML remembered her (because he got hit my an eraser in the head again.) and they reunited. The end. Please help me