The Taste of an Affair (Geun Yeo Seok)

On a night of adultery, the sisters Eun-jo and Eun-ju plunge to the very bottom of their souls. More than a beautiful, pure love, a lascivious and intense love is more stimulating—more pleasurable and more thrilling. Eun-jo falls into Dong-jae’s trap as he hides his true nature, and by the time she realizes it, she has already become Dong-jae’s plaything…

Original Webtoon:
Onestory, Nate, Ridibooks, Lezhin, Toomics