Kamoji-san's hair gets long: Gamecenter Cinderella Night

A "Gamecenter(Japanese name of a video arcade)" was discovered, a relic of already extinct Human. Living in a lukewarm, peaceful future, Kamojis get exited by destruction! killing! violence! games Humans created.
But when they try to leave, the door doesn't open! To get out, they have to complete 12 games....
Noobs begin the final fight on the game screen, while put coins into like a waterfall.

Daily life in a future world in which non-human characters (like the furry character) live after Humans exterminated.

This is a Japanese style manga, so please read it from right to left.
40pages of monochrome manga, in addition description of characters and worldview, an English-only afterword is included in the appendix.
This work is a one off story, and not continuous with the other volumes. So you will also enjoy it from this volume.