How to Help a Friend Attain Nirvana

Cheong-woo dreams of a threesome with his crush, Ha Se-jun, and his friend, Eun-bin. Unable to calm his shocked mind, he heads to school with them to fulfill their friend Yu-hyeon's last wish. Yu-hyeon's dying wish is to be summoned through a "séance!" The absurd ritual succeeds in summoning Myeong Yu-hyeon, but a grim reaper suddenly appears, stating that if Yu-hyeon's wish isn't granted, he will become an evil spirit. What could Yu-hyeon's wish be?