Computer science major Sangwoo Choo values reason, routine, and rules above all, so when the rest of his teammates fail to contribute to the group presentation, he doesnt hesitate to cut everyones names from the project entirelyincluding design major Jaeyoung Jang, which ruins his plans to graduate and study abroad. Jaeyoung is more than happy to return the favor and strives to be the biggest thorn in Sangwoos sidebut as they spend more time together, a strange attraction begins to develop between them… Will Sangwoo be able to debug this semantic error from his life?