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 doesn't hesitate to cut everyone's names from the project entirely--including 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 Sangwoo's side--but 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?