I'm an office lady, and a part-time rental girlfriend. I'm good at getting along with people and can do anything. I'm not particularly interested in romance right now, but I imagine I'll get married and have kids someday... Then I met Sui-chan, my first rental girlfriend client. At first, I was hesitant because we're the same sex and she's younger than me... but then I thought, wow, I'm good with women too!?

The same part-time job, the same surname, the same family environment - other than that, Satou Yuna and Satou Ema have absolutely nothing in common. But due to a strange twist of fate they end up sharing an apartment... Sometimes they fight, but maybe it's because they're total opposites that they can be together. A new-generation of girls story about young women who live flexibly and resiliently!

Yuna, a cute yet cunning high school girl meets Ema, a flashy gyaru with the same surname at her a part-time job. Despite their similar backgrounds, both feel they probably won't get along... A story about a strange yet comforting bond - a Reiwa-era sisterhood. (Prequel two-shot of "Ano Ko to Futari de.")