 If you liked Watashi ga Motenai no wa Dou Kangaetemo Omaera ga Warui! |  ...then you might like Kasane |
Both female protagonists see themselves as being ugly, and are thus antisocial. While Watashi ga Motenai (rest omitted) is much more comedic with her awkwardness; Kasane is much more darker, dealing with a supernatural element that carries the story about bullying, and what it can drive some people to do.
report Recommended by Estoy_Gordo