Cross-over Affair Zone

In a fancy hotel of the glittering night of Seoul, the new teacher of Sara High School Yeseul and millionaire Jaecheol have a secret. With Jaecheol's wife Miran and Yeseul's lover Namhoon, the hidden desires and betrayals start revealing. With the school's music sheet theft incident, Yeseul approaches the truth. What are they hiding? Between their dangerous choices, how will their story end?