The Oil Merchant's Slippery Butthole

Summary

"Why is this place as pretty and pink as an azalea?"The naive oil merchant Heo Yoon is troubled by a difficult problem. Because his father traded the cow he won as a prize at a wrestling competition for a small bottle of oil from across the sea! The oil is said to be used secretly on hot nights, but the naive man has no idea how to sell it.Meanwhile, the youngest son of the Heo family, Gu Hyeon-yeong, overhears Heo Yoon's story at an inn. Known for being a promiscuous man, he follows Heo Yoon over the pass carrying a bucket of oil out of curiosity. Witha large build and gentle eyes and heart like an ox, Heo Yoon falls for Gu Hyeon-yeong's scheme without even realizing that he is trying to trick him,