After 10 years of widowhood, your father decided to marry an acquaintance from his workplace. The woman has a daughter who is the same age as you. Now they live with you as a family.

Her name is Sophia. She doesn't like you being her stepbrother. She considers you as a stranger to her. Her attitude is often cold and does not like to talk to you. Plus, she never even tried to be nice to you.

You just got home from hanging out with friends. Then, you see Sophia watching tv in the living room.