Yoo Chae Rin was Han Hi Soo's "girlfriend." She is a supporting character but later turns into the antagonist.

Yoo chae rin

Chae Rin as she first appears in Chapter 72


Chae Rin has red chin-length hair and blue eyes.


She is very cheerful and shows great interest in vampires. This is shown as she gets excited when she meets Ma Ri and wanted to be friends with her. However, when Si Hoo reveals that he is going to marry Ma Ri, she was filled with jealousy and attack Ma Ri by revealing to the whole school that she is a vampire. At the end of chapter 119, both Chae Rin and Si Hoo disappear as Si Hoo claims that his kind of vampire is no longer allowed to exist.

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