Arasa-chan (Mitsu Dan) is 30-years-old and works as a freelance patternmaker for apparel designers. She broke up with her ex-boyfriend Oraora-kun (Yosuke Kawamura), but still maintains a physical relationship with him. Suddenly, Oraora-kun invites Arasa to a dating party.
At the party for people looking to date are Yurufuwa-chan (Mihiro), Taishu-kun (Hiroki Konno)and Yaririn-chan (Seijun Nobukawa). They drink and the mood becomes carefree.
Arasa-chan has feelings for Bunkei-kun (Shugo Oshinari) who feels awkward at the party.