Gate of Planet

Shimamine Sakura is a first year high school student who appears gaudy. Because of that, the boys misunderstand her and she isn't able to get along with the girls... and the only one to protect her is her childhood friend, Kankurou, whom she has had a crush on for 10 years. But Kankurou has found his own love...?

(Source: Houkago Scanlations)