Jae Min despises vampires and Ma Ri becomes the new student of Huimang High School, hiding the fact that she is a vampire.

Jae Min suggests Ma Ri to start the school band; Si Hu transfers to Huimang High School; Ma Ri starts to be drawn to Jae Min who saves her from crisis.

The girls in the school suspect that Jae Min and Ma Ri are dating after seeing Jae Min help her find her brother; Ma Ri discovers her teacher is Si Hu's uncle; the school band Orange Marmalade gets formed.

Ma Ri suddenly disappears after getting her identity known to friends; Jae Min has a hard time with the fact that Ma Ri is a vampire.

Jae Min goes to the forest to find Si Hu; he finds Ma Ri playing the flute; Jae Min falls in love with her at first sight, but he is disappointed to find out she is from the untouchable class.

Ma Ri is put in danger because of Won Sang Gu and Jae Min insults Ma Ri by calling her a butcher, a lower being than animals.