The Oil Seller's Butthole Is Slippery

Heo Yoon is a humble oil seller, peddling his wares when he catches the eye of Gu Hyeon-Young, the scandalous youngest son of a noble lord. Hyeon-Young follows after Yoon and tries to seduce him multiple times, but the muscular Yoon is as innocent as he is brawny. Will Hyeon-Young successfully ensnare Yoon and have his way with him, or will Yoon's earnest character thwart him yet again?

(Source: Lezhin US)

Note: Includes 13 extra chapters.