Episode 4: Rui Xi starts receiving hate notes from Le Cheng Yang (Yang Yang) and is secretly sad/mad. Rui Xi's became instantly harder after she received a letter from he half brother saying that he is coming the next day. The terrible thing us that her brother doesn't know she attends a boy school. Quan starts being cautious of Rui Xi and is spying on what she was doing and found she was just seeing her brother. After finding out who made hate notes, Rui Xi had a talk with Yang Yang and made friends. But moments after talking to him, her brother who is staying in Taiwan for two weeks, saw her dressed up and walking around campus and found out everything. He would let Rui Xi stay under one condition, within the two weeks he's staying, Quan needs to high jump like he used to.