Space-Time Rubik's Cube

[Traditional] [Science Fiction] [Light Novel] [Non-System] This is not a different world travel novel, but a science fiction novel. It's not a monster-killing and upgrading story, it's a science fiction story. From time to time, urban pretense is a slap in the face, and it is science fiction. Okay, okay. It's not all science fiction, it also includes the mystery side, but it definitely can't be considered complete astronomy. It is really not the heavens. Don't think that it is all like this just because of the previous time travel. Momo really wants to write a slightly harder science fiction novel... A series of stories, worlds, and confusing identities triggered by a mysterious Rubik's Cube? Ahem... Forget it, the introduction is useless... Write it as well as possible, and try to be worthy of the few readers who are still reading...