With a student I met again at a reunion...

Rui is reuniting with her students for the first time in a long time at the reunion. As one of my students, Kazuya, was home in a pleasant aftertaste, and was soaking up in the afterglow, when a sudden downpour suddenly started to suddenly take shelter from a love hotel... Kazuya exudes the space for just the two of them and expresses his feelings, saying, "I've always admired the teacher." Rui, who had a certain crush on him, helped with the momentum of his alcohol, and ended up having a relationship. After that, he decided to accept it as a one-night stand and avoid contacting Kazuya...