Virtual arenas where our fighters come and fight until the end...
We arrive in a technology-advanced future where humans have access to time-travel. They can recall consciousnesses of people from the past from their discovered remains and make them battle against one another in virtual arenas, in the form of Chibis. Gladiators get awarded points to use either:
Escape the world indefinitely and their memories about this world erased.
OR invest in better gear and dominate the next games, accumulating loot.
In order to not break the time-space continuum, our characters are reminded to not tell about their new experiences and receive their earned loot when waking up in real life.