Let us squirt all those toxins out~ okay? When tired from work, Mitsuba will head to a massage parlor. Once a month, she gets a massage to heal her tired body and soul. One day, she accumulates enough points on her point card for a discount... and eligibility for a VERY special course on her next visit...
A most loutish goblin named Heuk-ran is the master of Goblin Mountain. He’s a powerful creature who enjoys tormenting humans as if they were his personal playthings. The people tried all that they could to appease him but even the great shaman couldn’t get through to him. But as he finds his next victim to satisfy his whims, will he finally be outfoxed by the clever little Yeon?
Sangcheol who had just returned to school after finishing his military service. He tries to win over the freshman queen Yeonoh, but… “Could it be your first time, sunbae?” The virgin Sangcheol who had his pride hurt, begs Heesu to teach him some techniques. That’s how the secretive special lessons start! Heesu and Sangcheol’s sex class. How will it turn out?