In order to commemorate the summer that will never come back, the photography-loving boy Kirishima Kaito (voiced by Shimazaki Nobunaga) decided to direct and act in a film with his friends. Just as the film was about to start, the figure of a strange girl, Kizuki Ichika (voiced by Tomatsu Haruka), attracted Kaito's attention. Kaito was deeply attracted by Ichika's appearance and personality, and this transfer student with a bit of weird behavior seemed to be hiding some unspeakable secrets. The childish but beautiful Tanikawa Kanna (voiced by Ishihara Natsuori), the mature and steady Ishigaki Tetsuro (voiced by Ogiwara Hideki), the timid and shy Kitahara Mio (voiced by Asumi Kana), the weird and unpredictable Yamano Lemon (voiced by Tamura Yukari), no matter what the ending is, in such a midsummer, every day spent with friends will become a precious memory that Kaito will never forget.