Youngsaeng a human, meets Kyujong a vampire an falling for him and meeting the rest of the Kim family, Youngsaeng and Kyujong have been together for the last 3 years. After a great vacation; Youngsaeng finds out he's pregnant with Kyujong's child. He has only been pregnant for two weeks, but the baby is growing very fast. His childhood friend Jaejoong rushes over to the Kim's house and finds Him already heavily pregnant. Jaejoong becomes upset, saying that they should abort it as soon as possible. Youngsaeng says that it is his and Kyujong's choice. As his pregnancy progresses, the quality of his health declines, then rapidly improves as he starts drinking human blood to satisfy the thirst of the vampiric baby. What will happen?