Chu Sang U, a strict computer science student, clashes with design major Jang Jae Yeong after removing his name from a project, leading to unexpected sparks.
JaeYoung invites SangWoo to the movies, causing him confusion. JaeYoung vows to leave SangWoo alone, taking a part-time job to keep busy. JiHye helps SangWoo debug an error.
SangWoo attempts to apologise, but JaeYoung is unmoved. SangWoo tries again, and JaeYoung agrees to work on the project together. Their respective working styles cause problems.
SangWoo and JaeYoung play Yaja Time. JaeYoung and JiHye discuss SangWoo, and YuNa tells SangWoo about JaeYoung's past relationships. JaeYoung gives SangWoo a demo of the proposed two-week trial. JaeYoung is accepted into Dex.
