HIStory2: Crossing The Line

Qiu Zi Xuan was an excellent volleyball player in the past, but he had to give up his dreams due to a knee injury. Despite everything he still participates in the team's training. Zi Xuan meets Xia Yu Hao, a guy with a bad temper but huge potential for volleyball. Zi Xuan thinks that it is he who can achieve his dream instead of him. He hopes that Yu Hao can achieve what he couldn't in the past and agrees to help him.

On the other hand, there is Wang Zhen Wu, who is Wang Zhen Wen's older brother. Zhen Wen likes his brother, but he can't show his feelings because they are family.