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[Story]
Iori, Mako, and Luna—the three so-called 《△×○□ Unkoro Idol Sisters》—share a room in a slightly old house in Tokyo.

Due to their jobs, all three of them have irregular schedules, so they only get to hang out together once a month, if that.To enjoy these precious days, they take advantage of a slightly unusual 《service.》

That place was
The Livestock Personnel Dispatch Center.
On this day, the three sisters called in a mid-level host named Kumakuma.
He's honest and earnest, and does everything he's told perfectly, but...
It was all too 《expected》 and uninspiring.

「Isn't his reaction a little off?」
「I know, it's getting boring now.」
「We need a breath of fresh air, don't we?」

Then Luna remembered the rumored newcomer who she'd also interviewed for...