A love story often begins after a few jokes ... Hoo Se In and Bang Myung Rok are in moderation class. Myung Rok decides to play Se In, who ridicules himself in front of the whole class. After this incident, they begin to approach each other and leave together. But Jo Ye Rin, in love with Myeong Rok, spreads a rumor about Se In, which causes him to leave Myung Rok. Five years later, Se In, still in love with him, decides to reconnect with Myung Rok. Can your relationship resume where you left off?

The sequel to the romantic story "Love After School 2" will tell us about the relationship between the heroes of the first season. Bang and Hong were loyal friends at school, and it was only as adults that they realized they were in love with each other. They are still having fun together and getting ready for the upcoming wedding. But the couple will have to face unexpected problems and pass a real test of their feelings. Will they cope?