>>287396699
They established pretty early on during her introduction that Yachiyo can make copies of herself in a virtual space, they're all extensions of her.

>>287396699
>Kaguya goes to earth
>Movie happens
>Goes back to moon
>Decides to go back after finishing her job
>This takes thousands of years
>Travels back in time to get back to Iroha
>Ship gets hit so she goes back too far
>Ship is damaged so it can't create a body for her, only for pet
>Pet tells people her story which eventually becomes the tale of princess Kaguya everyone knows
>Pet instructs people to keep the ship safe
>Eventually tech advances to the point they can plug the ship to the internet
>Kaguya builds the metaverse and realizes she was Yachiyo all along
>Movie happens
>Iroha learns the truth and build herself a sexbot
>Yachiyo installs herself into the sexbot so now there's two instances of her running at the same time

>>287396699
Just look at the story from Kaguya's perspective.
>Go to earth to escape her day job
>Meet iroha
>Fall for her
>Participate and win the Yachiyo cup
>The lunarians come to take her back home
>she go back to the moon
>She hear Iroha's song and try to rush all her job before going back to earth
>By the time she does, Iroha is an old lady
>She go back in time but hit a meteor and get stuck 8000 years in the past
>Decide to guide humanity to the future she came from and create the tsukiyomi
>became Yachiyo because she is a hag now after 8000 years
>have a proper reunion Iroha after watching her past self go through the same shit she went through
>Iroha makes her a new a body
The Yachiyo at the end is just one of her clones, she now uses the Kaguya avatar.

Roka will win in the spin-off

This movie was a steaming pile of shit and only yurifags could ever claim it was good.