Deep scars (Myungsoo and Eunji )

A girl name Jung Eunji. Her father pass away and now has a step father, who beats her up for not being good at school. Her mother beats her up too. That why she became heartless. Now there going to be new students coming. They are called infinite. She ticks off one of them and the person who she ticked off was L (Kim Myungsoo). After that he starts bully her.
Now she get beat up and bullied.
How long will she take it?