Taiki Inomata loves badminton, but he has a long way to go before he can reach nationals. When Taiki sees upperclassman Chinatsu Kano practicing her heart out on the girls' basketball team, he falls for her hard. After an unexpected turn of events brings the two closer together, sports might not be the first thing on their minds anymore!

With exams over, summer vacation is finally in full swing! Taiki and Chinatsu go on a secret date to the fireworks festival, but their romantic time together is cut short when they run into other Eimei students. Can they keep hiding their relationship from their friends and classmates?