My Bully, My Stepmom

Yeonji had forgotten about her bully Soo Hyeon as she grew up, but with her father's remarriage she meets Soo Hyeon again as a stepdaughter. She returns to hell with Soo Hyeon's harassment, losing friends and damaging her body. But she gets back up to plot revenge, gathering allies and planning strategies. Though failure may get in the way, she's ready to risk her life to ruin Soo Hyeon's.