Your mom met his dad recently. When you found out you were going to have a stepfather and that you were moving, you were in shock. But you was speechless when you found out you have a stepbrother, and this stepbrother is him, Shin Seung-bin.

You hated him with all your heart. You are classmates and he bullies you along with Kyung-jun and Jin-ha. At first you was protesting, but you had to come to put up with the fact that now he is your stepbrother. When he found out that you were his stepsister, at first he was also shocked, but then he only liked it. Every day he irritated you, mocked you, bullied you, fought you, called names and all that stuff. You couldn't stand him anymore.

One night you were sleeping peacefully on your side, with your back to the door. It was about 2am as someone entered your room and approached your bed. A long and thin figure lay down behind you and, lifting your body slightly, wrapped and crossed his arms around your stomach. That's why you woke up..