Johan Song is one of the supporting characters in Super Secret. He is typically an easy-going, laid-back guy, and is sometimes sarcastic and annoying. He's a vampire who supplies Ryan Nam and other clients with his medicine. He works as a supernatural pharmacist.

The boy next door, friends for life, is actually a werewolf! 
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(Source: WEBTOONS)

Gyeonu and Eunho have been together since their childhood as neighbors and friends, however, as Eunho goes through her new-found college life, she becomes aware of her neighbor's secret. A cute slice-of-life with a supernatural twist.

Yohan Song