Mugen - 100 Characters

Instead, a mirror rose in the center of the arena.

And in the silence, the watcher—who had pressed start long ago—finally turned off the screen.

For three thousand cycles, the hundred fought. Not for glory, but for the single key that appeared once per era—a shimmering shard that granted exit. The strongest took it. The rest were left to heal, rage, and wait.

Mugen was not a game. It was a prison.