"Me?" His black eyes slowly turned into deep crimson red, fangs were starting to come out, veins were also starting to pop out on the side of his head and on his neck.    "I am a vampire" the Lee family was deeply shocked by what they saw and prayed that it was just a dream.    "And Hyukjae?    He's my mate" 

CEO Kim Jongwoon's secretary and secret lover is Lee Hyukjae not until his father found out their relationship. His father believes that an heir should marry an heir and he cant see hyukjae as one. In order to separate the two, he had to make a story where Jongwoon only sees hyukjae as leisure and isn't serious about what they have. He ordered someone to make his plan successful. Then Hyukjae found out that Yesung wasn't really serious about him and that caused Hyukjae to change.

Hyukjae telling how he loves his lover, yesung and how his life is going through in an old traditional way. 

Jongwoon confessed his love to Hyukjae but he didn't expect what Hyukjae answered to him.