Those who have watched the Semantic Error series will be familiar with this story. This movie is another movie released after the series. Computer science major Chu Sanwu, the son of truth, is righteous and cold. Chu Sanwu was so stubborn that when it was time for a group presentation at school, he had to be the only referee, so he publicly erased the names of the other members and wrote only his name on the presentation. What Chu Sanwu didn't know was that because of his actions, the academic milestone of Jang Jae-young, a senior student, was no longer what he thought it would be. Jang Jae-young is a design major who loves people and has the opposite style of Sunwoo. Jang Jae-young, who is going to study abroad, had his grand project ruined because of Sun-woo, so he started looking for San-woo to solve the problem. In this way, two people with different personalities decided to work together.