Yahwacheop

Na-kyum is a young painter with an exceptional talent: creating erotic images of men. Though he has published a few collections under a pseudonym, he has decided to quit painting. Then Seungho, a young nobleman, barges into his life. A hell-raiser notorious for his insatiable lust, Seungho forces Na-kyum to become his private painter. However, the nights that await Na-kyum are beyond anything he could have imagined…
Original webtoon
Official English Translation
Official Japanese Translation