 If you liked
Kasane
|
 ...then you might like
Sora wo Kakeru Yodaka
|
Both mangas involve an ugly girl switching faces/bodies with a pretty/popular girl. Sora wo Kakeru Yodaka is told from the perspective of the poplar girl (turned ugly) who desperately tries to find a way to revert her body back to her original, while Kasane is about an ugly girl, who has the finds a way to switch her face with faces she any face she desires.
Kasane is a bit darker than Sora wo Kakeru Yodaka, however if you enjoyed one of them, you will most likely enjoy the other as well.