Shota, who is hospitalized for asthma at a privately-run hospital, finds his boring hospital life only enjoyable when he plays pranks on the nurse 'Airi's' big ass. On the other hand, 'Airi' only thinks of these pranks as mere mischief from a brat. However... one day, 'Airi' catches Shota masturbating in bed, and the situation suddenly changes...
