Jaeyoon created a programming club under the pretext of playing games at school.
A new member of the club, which was scheduled to be abolished due to a lack of manpower, is introduced, reversing the tired daily life.
Jae-yoon, who accepted Seo-ah that she just needed a quiet space, encounters various aspects of her defensive self.
Meanwhile, Jae-yoon, who heard that Seo-ah could leave for Finland as an exchange student, realizes that the grace period is not that long.