Mangmang Yu and Lin You used to be childhood playmates. As years go by, Lin You has become a school prince while Mangmang Yu has become a weirdo on campus after having been through a lot in high school. They reunite and recognize each other at the first day of the new term when Mengmeng Yu pour a buck of water on Lin You's head. Mengmeng Yu soon finds out that Lin You is no longer the angel boy in childhood. She wants to stay away from Lin You, but Lin you seems to have another idea...