Naho's a single woman in her 30's with a past.
She spends her days fighting off carnal urges.
One morning, Detective Tsubasa Natsunaki visits her apartment asking for information on his case.
Tsubasa's a gallant, handsome, loyal young man.
Naho gets it into her head that just one time would be enough, and boldly asks Tsubasa for a favor.
They've spent a night of passion together, but now what...? This is the unpredictable love story between a man who's pure of heart and a slightly empty-headed woman!