Don't Back

In this game, everyone will become stuck. Leave no trace behind or disappear into garbage and carrion.

Ruri attempted to identify herself after losing her memories. When he first encountered Sesilia, his efforts were at a standstill. It turns out that for Ruri to recover her memories, she must first play a dangerous game.

I can't believe a major pharmaceutical business is involved in this game. Whereas the world's aim is something that the game was made to defend.

Will Ruri be able to retrace her memory loss? Who is the deadly game's creator?