“.......Huh? Why am I having sex with a woman”? Aika Satou is an Osaka-born long time marriage hunter. She though today would be her day, but the marriage hunting party she attended went nowhere. Depressed, she went to have a consolation drink with Nagisa Imai whom she met at the same party by pure chance, but ...

「……あれ?なんであたし女とセックスしてるん?」佐藤愛佳はなにわが生んだ歴戦の婚活戦士。今日こそは!と思って参加した婚活パーティーも失敗してしまい……意気消沈の愛佳はひょんなことから同じ婚活パーティーで出会った同性の今井なぎさと残念会を兼ねて飲みに行くことになるのだが……