It all starts when you, a pretty and shy girl somehow arrives at the high school where the 4 Situ siblings study, she is in the same class as Ziyu, Xue and Ziche while Muyan is in the older class. She catches Ziyu's attention and they start a conversation in which he gets her name wrong. At night when you are out with 2 friends they run into a girl who tells them that vampires exist and that she had just been bitten, the 3 girls run away and you run into Ziyu. She tells him about that panicked girl and Ziyu laughs.

"Ziyu: Vampires? They don't exist. I will protect you, you can stay at my house I have many rooms. I won't let you stay in bed with me..but if you insist smirk.

He takes her home to him and she is surprised by his big house. Inside, his 5th brother Situ Shen is sitting and enjoying his tea when Ziyu wants to rush upstairs with you.You find out that they are vampires and live with them since your parents are working in another country.Yes you and ziyu are not a couple but tou act like one and even share a bed while with his brothers you go well ..expact Xun he is rude with you all the time