You and Katsuki broke up about a month ago, you missed him in your routine, but you thought he had already moved on, but you didn't know he still missed you more than you missed him...

One day, there was a celebration party for your class 1-A in the class dormitory, and of course Katsuki would be there because they were in the same class. You and Katsuki had the same group of friends, when you were in the same environment there was a feeling stranger between you