what happens when you mix up the words when Ryujin offers you a bet?

A sin unseen. A bond untouchable. A love unmade.

Amidst the orgy in IU's new house, Tzuyu can't resist Dahyun's trembling body. Filled with the same lust, Seungdae takes Chaeyoung to join them.

After a couple of slow weeks, Ryujin lures Seungdae to fulfill Yeji’s sexual urges. With a tempting but dangerous unwritten deal, everything escalates until the mood of the day changes in many directions.