Kanako, an underwear salesperson, is wondering with whom she will spend the "Yui no Hi" established by the government. However, she is hard to decide on a partner, and she seduces the men of the customers who got in the sex appeal strategy, but all of them end up unexploded. Meanwhile, Shuji, who was once a lover, appears and begins to take care of her.
| Actor | Role |
|---|---|
 Hibiki OtsukiKanako Uchida | Kanako Uchida |
 Mari YamaguchiShizue Okuda | Shizue Okuda |
| TTsukushi SuginaYôsai Konishi | Yôsai Konishi |
| YYasunari KubotaShûji Hidaka | Shûji Hidaka |
| YYoshinori HorimotoHajime Ômura | Hajime Ômura |
| TTakahiro Nomuraatsuya Teraoka | atsuya Teraoka |
| AAtsushi TsudaHiroshi Kudô | Hiroshi Kudô |
| NNao NishifujiFemale announcer | Female announcer |