It's been a year since Miyajima was forced to take an aphrodisiac and spent the worst night with her awful ex-boyfriend Yoshino on a business trip... Miyajima has married her colleague Akagi. However, since then, Miyajima has become addicted to the pleasure of the aphrodisiac and has been secretly having an affair with Yoshino without her husband's knowledge... And then, the unexpected, drug-sex shared-room NTR shocking climax...