Honey Bunny!(2000)

Honey Bunny!

A story of unrequited love and alien possession! Chiyo, a homely high school girl, hates the handsome Tsubaki for his cruel ways, but she can't help but have a crush on him at the same time. Pushed to the breaking point, she prays for him to go away, and that's just what happens. But where does alien possession fit into all of this? Read and find out. This is a shoujo manga like no other!

(Source: MangaCity)