i still have no idea how they putted kaguya from the past and injected her into an android, like what?

They didn't, they put Yachiyo in it. Well she's still Kaguya from the past just with extra 8000 years of hardship.

I also interpreted that at first, but then the following scene is both of them performing together on the real world. Yachiyo looked like a projection/hologram, but their dialog is what threw me off, since Kaguya says "it's been a long time", Iroha asks "about 8000 years?" and Yachiyo says "for me it was just last week".

Could it be that it was just Yachiyo controlling both the body and the projection and being silly? Probably, but it got me confused for a while.

Yea I think it's just Yachiyo joking and being silly. I mean it has been 8000 years since she last performed as Kaguya, but Yachiyo has performances all the time. Also I think the Ray music video clearly shows that it is Yachiyo in it.

By the way, there's a paywalled third page where the examination, uh... goes further.

Yachiyo is able to duplicate herself. Theory is that there is a main Yachiyo that was operating the bodies Iroha was making until they land on the final version we see on the lab and most likely becomes mortal after they use the ship they bury it. At that point main brain Yachiyo has become Kaguya again and Yachiyo is a copy that continues to entertain as a Virtual Idol and operate Tsukuyomi, most likely the current-Kaguya and virtual-Yachiyo can still exchange memories and experiences through virtual means, but I imagine the performances aren't in the important stuff to transfer.

last edited at Feb 25, 2026 8:49PM

i still have no idea how they putted kaguya from the past and injected her into an android, like what?

Already answered but it's worth repeating. Iroha put Yachiyo in that body. Yachiyo is Kaguya from the past.

until they land on the final version we see on the lab and most likely becomes mortal after they use the ship they dig out.

They didn't dig out the capsule (it's not a ship btw, it's a tiny capsule of around 30 centimeters long). They buried it. When the internet was just starting, Fushi convinced a man to help her move the capsule to an apartment before she started coding Tsukuyomi (this is shown in a series of flashbacks in the movie). When Fushi created Tsukuyomi, she connected Kaguya's capsule to the internet (in the movie we can clearly see cables connecting the capsule to Fushi's computer) and Kaguya manifested as Yachiyo in Tsukuyomi. Later on Yachiyo/Kaguya was moved into the Kaguya body that Iroha made and they buried her capsule, since it wasn't needed anymore (this happens in the Ray's music video, which is official).

And I don't think Yachiyo can become mortal. The lunarians are data based people. Kaguya was never mortal to begin with. What was inside Kaguya's capsule is just data. Kaguya's true self is made of data. That's why the lunarians retrieved Kaguya directly from Tsukuyumi when they took her back to the moon, remember? Her virtual self was her real self. Her physical body in the real world was a sort of interface. And since her capsule was damaged when she came back to Earth, she couldn't create a new physical interface for herself. That's why she could only manifest as Yachiyo the virtual idol until Iroha made the robot body for her.

As you said yourself, Yachiyo can duplicate herself, so being inside the Kaguya body and in Tsukuyomi at the same time is easy. But that doesn't mean they're separate entities. They're one and the same. Nor does it mean Kaguya became mortal. That doesn't make any sense, because even if we assume her capsule could do that, it was damaged, which is why Iroha had to create a robot body for her in the first place.

last edited at Feb 24, 2026 4:27PM

That helps a lot to connect the dots, the only thing I'm not sure if it's clear is this

they buried her capsule, since it wasn't needed anymore

Is there something that adds some meaning to them burying the capsule? I first I also thought they were digging it out, but the capsule is perfectly clean so burying it makes more sense, I just don't get why they did it. Even if they didn't need it anymore, I feel like there should be something more that I'm missing given the attention it was given in the MV.

That helps a lot to connect the dots, the only thing I'm not sure if it's clear is this

they buried her capsule, since it wasn't needed anymore

Is there something that adds some meaning to them burying the capsule? I first I also thought they were digging it out, but the capsule is perfectly clean so burying it makes more sense, I just don't get why they did it. Even if they didn't need it anymore, I feel like there should be something more that I'm missing given the attention it was given in the MV.

It's another reference to the original Tale of the bamboo cutter. Kaguya and the emperor of Japan fall in love, but Kaguya has to return to the moon so she gives the emperor an elixir of immortality as a parting gift. The emperor travels to the top of Mt Fuji and burns a letter in hopes the embers will reach her on the moon and the elixir because he considers immortality without Kaguya by his side a curse and rejects it. In the subversion operated by this movie, Iroha is the emperor and the song Reply is the letter which does reach Kaguya. Kaguya's ship used to house her soul over the 8,000 years she spent on Earth until it was plugged into the internet and it represents her immortality. Iroha transfers her soul in a new body and the burial of the ship at the top of Mt Fuji symbolizes Kaguya herself deciding to live on as a normal human with her love, a complete inversion of the elixir's meaning in the fairy tale.

Whether Kaguya actually becomes mortal or if her soul will still persist in the moon/virtual realm once her new body dies is a different matter and starts involving speculation about the nature of human souls vs lunarian souls which I don't think can be definitively settled.

last edited at Feb 24, 2026 8:08PM

They didn't dig out the capsule (it's not a ship btw, it's a tiny capsule of around 30 centimeters long). They buried it. When the internet was just starting, Fushi convinced a man to help her move the capsule to an apartment before she started coding Tsukuyomi (this is shown in a series of flashbacks in the movie). When Fushi created Tsukuyomi, she connected Kaguya's capsule to the internet (in the movie we can clearly see cables connecting the capsule to Fushi's computer) and Kaguya manifested as Yachiyo in Tsukuyomi. Later on Yachiyo/Kaguya was moved into the Kaguya body that Iroha made and they buried her capsule, since it wasn't needed anymore (this happens in the Ray's music video, which is official).

And I don't think Yachiyo can become mortal. The lunarians are data based people. Kaguya was never mortal to begin with. What was inside Kaguya's capsule is just data. Kaguya's true self is made of data. That's why the lunarians retrieved Kaguya directly from Tsukuyumi when they took her back to the moon, remember? Her virtual self was her real self. Her physical body in the real world was a sort of interface. And since her capsule was damaged when she came back to Earth, she couldn't create a new physical interface for herself. That's why she could only manifest as Yachiyo the virtual idol until Iroha made the robot body for her.

As you said yourself, Yachiyo can duplicate herself, so being inside the Kaguya body and in Tsukuyomi at the same time is easy. But that doesn't mean they're separate entities. They're one and the same. Nor does it mean Kaguya became mortal. That doesn't make any sense, because even if we assume her capsule could do that, it was damaged, which is why Iroha had to create a robot body for her in the first place.

You are right! I forgot I read it was official that they were burying it! Ahh okay, but Kaguya is becoming mortal is actually also in the MV in the scene where Iroha is typing on her computer, so more than becoming human it would be mortal in the sense that she would cease to exist as she is giving up her 'immortality', so as someone else said, the bamboo spaceship that symbolizes her lunar identity is buried in Mount Fuji. It is true that Kaguya and Yachiyo are one and the same, I never said they were different entities, it just means there is one main 'brain' that focuses on her IRL life and there is one that continues to entertain in the virtual world hence why Kaguya said she is nervous to perform after so long while Yachiyo says it was only 1 week for her, the performances are not her main priorities to take space in the main brain.

last edited at Feb 25, 2026 9:32AM

The "capsule" is Kaguya's spaceship. That is literally the thing she traveled to Earth with, so calling it a spaceship is fine.

And yes, Kaguya is Yachiyo and can copy herself. But the Ray MV implies Kaguya becomes mortal and in a way "huiman", so there is some question to Yachiyo's continued existence. Perhaps Kaguya simply logs in as Yachiyo sometimes. We have to remember that the Return Concert happens before the burying of the spaceship.