When Sanlian's ex-husband passes away, she discovers he has altered his insurance policy, cutting out their son in favor of a stranger named Jay.

Dragon Lee struggles with living with his five beautiful, talented, and incredibly strict older sisters. With the transfer of a new girl, Meng, to his class, Dragon decides to trick Meng into becoming his girlfriend, so he can escape the control of his sisters. With this new threat, his sisters set up traps and challenges to try and break up the young couple, but Meng and Dragon grow closer as they head face-on and overcome each challenge together.

Shu-wei is an unpopular student who is a constant target for the school bullies, but he ends up joining forces with them when they encounter two demonic sisters who feast on human flesh in the middle of the night. The gang manage to capture one, but the other demon is angry and starts killing anyone wearing a school uniform.