Flower of Eden

Flower of Eden (エデンの花, Eden no Hana) is a manga series by Yuki Suetsugu.

Plot
Midori Wakatsuki is a beautiful but introverted girl who simply cannot connect with her peers and wants to run away from home. The reason for her unsociability is that after her parents' death, she was placed in an abusive foster family where she was sexually assaulted by her adopted brother. When her real brother, Tokio, comes back from the States and demands custody, Midori's life changes forever.