In her third year living in this steampunk world, Ciel gained the ability to simulate both the past and the future.

These simulations turned into a game where she could act without restraint, and after countless trials, real life became a replica she could navigate as though speedrunning it.

Churches, potions, mutations, the Old Gods, witches, sealed artifacts… none of these have anything to do with Ciel. She’s just an ordinary girl who wishes for a peaceful life.

She just happens to be particularly skilled at snuffing out danger before it even begins.

Twelve men and women of varying identities are invited into a new world.

Here, they must not only decide their lifestyles by voting on resolutions, but also constantly participate in life-or-death games to extend their visas.

And the designer of these life-or-death games is actually among them.