Kwon Hyeong-seok

Twenty years after a scandal tears apart a popular 2000s K‑pop trio, the three reunite for a one-off gig — if they can overcome one snag after another.

Hae-na who is bound to inherit her family curse which is turning into a dog after getting her first kiss. The only way to break the curse is to get a second kiss. The problem is the guy who gave Hae-na her first kiss is afraid of dogs.