Head Over Heels

Gyeon-U loses trust in Seong-A when he realizes she's something he hates the most. Seong-A loses her human amulet power and wounds open up.

When evil spirit Bong-su possesses Gyeon-woo's body and causes chaos, Gyeon-woo only emerges when his hand touches Seong-ah.

At school, no one knows about Gyeon-woo and Seong-ah's relationship. While their relationship seems more like an exorcism than a romance, he finally declares his love at a critical point.

Seong-ah cheers Gyeon-woo on, and he wins gold. Later, when Seong-ah falls ill, Gyeon-woo decides to care for her, but Bong-su gets in the way.

People grow to like the new Gyeon-woo, who is actually Bong-su. Bong-su realises he wants to become human, and Seong-ah decides to protect him.

When Seong-ah leaves everyone in order to protect Bong-su, Gyeon-woo goes out every night for three years to find her. They eventually reunite, but Seong-ah has changed.

Gyeon-u believes he met Seong-a, but it's Bong-su that he kissed; the new, delinquent Seong-a returns; the three people's real story begins now.