 If you liked
Aku no Hana
|
 ...then you might like
Harmonie
|
"Harmonie" and "Flowers of Evil" / "Aku no Hana" both revolve around a introverted male protagonist who has a crush on the attractive and popular girl in his high school homeroom class. Due to respectively unique reasons for both anime, surprising relations soon arise as they begin to interact with each other.