Manhwa / Flowers of Evil

Flowers of Evil (악의 꽃) is a seven volume manhwa created by Lee Hyeon-Sook in which siblings Se-Joon and Se-Wa are a bit too... close to each other.

Se-Joon and Se-Wa are siblings with a dark, complex relationship. Se-Wa, a girl considered psychotic by others, is attached to her brother... a little too attached. In her eyes, there is only Se-Joon, and no one else. And what of Se-Joon's feelings?

This manhwa features examples of: