It's an Unreasonable System That's Causing Trouble in the Heavens.

Without any preparation, I suddenly traveled through time. It is also bound to the so-called "idle around" system. The system is so involution these days that you don't even bother to give it a name? Unfair system, unfair host... You can play characters from the heavens, or you can be yourself... Just like that, there was a commotion in all the worlds! (This book is a sand sculpture, all the characters have collapsed, don't read if you don't like it)