Playing card games is his hobby. However, when he has to do it to retrieve his stolen memories, it becomes terrifying.

Being in an unfamiliar place and fully controlled by the system, Rei has no choice but to follow the game to uncover the secrets behind the façade.

Has he been abducted and used as a guinea pig for a chaotic experiment?
Or is this just another deadly virtual game?
Or perhaps something more sinister is going on?

Without a clue, he has to start from the beginning.

[Build decks, win duels and fierce battles, find answers.]
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I wrote this because I want a story that has a focus on card games and how they hold mysteries and choices over the fate of the characters, not just power complex stories. Of course there will be real combat too!

What you will get: Adventure, Academy-style Arc on the Floor 2, Battles, and card games inspired by Yu-Gi-Oh!/Cardfight Vanguard/Shadowverse! A deckbuilding story!

I plan for this story to be quite long within each floor, especially on floor 2 and/or higher.