Serina and Mizukawa-sempai have been going out for over a year now, but now that the time has come for Sempai to get down to brass tacks if he wants to get into a good school, things are changing between them. It hasn't been easy, but they've done their best to trust in each other. Now the big day is just around the corner…and if Sempai can ace his college entrance exams, they'll know it was worth the wait.