One year has passed since that day when she was made to drink an aphrodisiac and had a terrible night on a business trip with her worst ex-boyfriend, Yoshino...Miyajima married her colleague Akagi. However, ever since then, Miyajima has become addicted to the pleasure of the aphrodisiac and has been having an affair with Yoshino without telling her husband... And then there's the shocking climax of an unpredictable NTR shared room...