Six boys with different personalities and backgrounds are notified that they share the same father. On top of that, they are entitled to a huge inheritance. However, there is only one catch: they must attend the same school and live together in the same house for a year. In the end, they become from total strangers to close brothers, as well as making themselves adaptable to the changes in their life.

However, the six brothers not only have to deal with their uneasiness and dislike for one another, but also everything the ten mean girls (Da Ya, Gui Gui, Ya Tou, Tong Tong, Xiao Xun, Xiao Man, Apple, Mei Mei, Xiao Jie and Ke En) would do to make their school days a living hell for them. Unknown to the other nine girls, Ya Tou is actually the housekeeper of the brothers' mansion.

To add to their stress, someone is after their inheritance, trying to make them break their contract, and is sending people to their school to do so. Meanwhile, love blossoms among the brothers and their classmates.