Shizuka works as a nurse at a Tokyo hospital. One day, the selfish ex-boyfriend she dumped after enduring too much trouble is admitted and assigned to her care. Still as sex-obsessed as ever, he shows her his erection and demands sexual assistance. Although she is engaged, Shizuka cannot forget the cock she once knew so well and gives in. That moment begins three months of sordid hospital sex with the man she claims to despise, pulling her into an NTR affair behind her fiancé’s back.