Overview
While I was looking for a game similar to the god-tier game Enjoy the Diner, I found this one.

I will write a spoiler-filled summary and my thoughts.
Summary
- Aliens in the form of butterflies came and gave humans "the ability to move between worlds"
- Humans felt that there was a limit to living in just one world, so they started living while moving between worlds
- In one world, by chance, there was a social mood where talking with others about moving from world to world was taboo
- Yomichi, who was born there, believed that being able to move between worlds was an ability only she had
- But after she found that Madobe-san, whom she had met in another world, also existed in her own world, she learned that everyone had this ability
- Yomichi felt uneasy that all kinds of people were scattered across many different worlds and living there
- Is it okay for people to think completely different things in separate worlds?
- Don't we all need to live together and work together?
- But Madobe-san explained to her that everyone living in the same place under the same rules would be cramped and unrealistic
- Yomichi accepted this and got used to a life of moving between worlds
Thoughts
So, clearly, this was a story based on the idea that "when we are children, our view is narrow and we belong to only a very small number of communities, but as we become adults, the number of communities we take part in increases."
There was a scene where the world shifted the moment Yomichi ran into Madobe-san in the world where she was born. That very directly showed that "worlds" in this work mean "communities." It is like that thing where, when you are walking alone and then meet a friend, the atmosphere suddenly becomes "the mood you have when you are with a friend."
Spending about two hours watching that was a bit too long. Since the world itself was fairly normal, I wanted the characters' personalities to be attractive in order to feel drawn in. But the characters felt a little too empty. They had no drive, no curiosity... nothing.

Other thoughts↓
- The aliens had the ability to move from world to world, but they did not have the quality needed to use that ability, which was "imagination." So they gave that ability to humans, who had "imagination," and decided to ride along with them when they moved... That setting does not go any further than that. In Enjoy the Diner, there was "the next step," like "because of that, this kind of incident happened."
- The contradiction that people know the moon even though they live in a world with no moon. In Enjoy the Diner, there was "the next step," like "what is going on here?"
- Why does running into Madobe-san lead to discovering the secret of the world? Figure it out when you notice there is no moon.