The secret pleasure of Notozawa Nadeshiko, the demure and conscientious head of the health committee, is checking the underwear of the pupils who visit the infirmary?! As the first friend of the new transfer pupil, Aichigawa Ikumi, Nadeshiko tells her about her secret love of underwear. For the sake of friendship (?), Ikumi tries to oblige. Today, too, their friendship blossoms in the infirmary, just the two of them…?!