Yu Ziyou and Zhong Wan served different masters.

They had once been the closest of souls, and were the bitterest of enemies.

In order to repay a favor, Yu Le ended up being a scapegoat, severely insulting the school idol, Gu Yan.
From the start of class, Gu Yan has been glaring at him, even until the end of the day.
In order to get his "revenge", Gu Yan kept finding trouble with Yu Le.
Originally, it was just to teach Yu Le a lesson, but who could have expected, the "revenge" actually changed, Gu Yan felt that Yu Le was gradually pleasing to the eye, making it harder to make a move...