B's Intentional Approach

Design and Shin Chae-Wan and his friends are forced to take a computer science class that they can't understand at all due to a failed course registration. They approach Oh Ha-Eun, a gloomy and loner major student who seems the easiest to get on board for a group project. Chae-Wan is given the special task of teasing Ha-Eun for failing to register for the course. But what is this feeling? For some reason, this guy...he looks handsome?

(Source: Bomtoon, translated)