Playing card games is his hobby. However, when he has to play 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 rules to uncover the secrets behind the long-forgotten truth. Has he been abducted and used as a guinea pig for chaotic experiment?Or is this just another deadly virtual game?Or perhaps something more sinister is taking place? And why the strange robot know a thing about his family? Without a clue, Rei has to scratch from the beginning.  [Build decks, win duels and fierce battles, to find the answer.] I wrote this because I want a story that has a focus on card games in actual gameplay (such as TCG ) and how they hold mysteries and choices over the fate of the characters. It has slow building narrative before going into the dueling part. It also will take some time to arrive on battle royal or tournament! Of course, there will be real combat too! What you will get: A deckbuilding story! A journey of duelist to reach the highest level of plane! It has adventure, mystery, Academy-style Arc on the Floor 2, Battles, Friendship, betrayal, and of course a card game inspired by Yu-Gi-Oh! Cardfight; Vanguard; Shadowverse!  It has a system similiar like a LitRPG concept.  Anyway, this story will be a long series. I hope you enjoy it.