high school english teacher johnny suh is a terrible person.  

Miyoung wants nothing but for her last year of high school to be as successful as possible. However, things complicate when her tutor abruptly takes leave. Replacing her old tutor is Byun Baekhyun—the young, bright-eyed substitute teacher Miyoung finds herself falling in love with despite her best knowledge. There’s no walking away from a person who’s gorgeous in more ways than one.

During a party, Sehun found himself doing something completely out of his character; make-out with a random but hot stranger. With his one-night fling now a nice but distant memory, he begins his senior year of high school ready to become a slave to studying. There's a problem, however, when he meets Kim Jongin, his new, young, hot teacher. The same man he had a fling with at the party. After trying to deny a connection and attraction Sehun and Jongin find themselves in a forbidden romance; d