For Junichi Tachibana (voiced by Tomoaki Maeno), being able to silently watch the back of his senior Haruka Morishima (voiced by Shizuka Ito) is already a great happiness, but as graduation season approaches, Junichi Tachibana finds that his feelings for his senior have reached the point where he has to express them, otherwise, he will lose this precious opportunity forever. In order to overcome his shyness, Junichi Tachibana decides to increase the chances of contact with women. The quiet and steady Ayatsuji Koto (voiced by Kaori Nazuka), childhood sweetheart Sakurai Rihoko (voiced by Yoshiko Shintani), cheerful and straightforward Tanamachi Kaoru (voiced by Rina Sato), and gentle and elegant Nakata Sae (voiced by Hiromi Konno), shuttle between these cute girls, and Junichi Tachibana slowly becomes more comfortable. Christmas is approaching. In this festival with the right time and place, can Junichi Tachibana harvest his pure first love?