Original Webtoon:
Ridibooks, Naver Series, Bomtoon, Lezhin, MrBlue, BookCube

A prostitute who sells his body while in debt, 'Lee Tae-hyun'. When he finds out that his only beloved colleague, 'Choi Woo-yeon', was assaulted by a customer, he goes to room 666 of Gwisan Villa to get revenge. However, what was waiting for him in room 666 was not a customer, but 'Jeong-woo', the only son of a gangster family who runs a drug company. Jeong-woo, who kills a person and gets high on drugs, mistakes Tae-hyun for someone else and carries out his own revenge... The story of Tae-hyun, who sells his body but is pure at heart, and the rogue drug dealer Jeong-woo becoming close physically.