The male high school student Rindou Shouma was summoned to the other world Astral where Duels decide everything. However, the rules of the card game were exactly the same as a card game Shouma was already good at! In the Duels, the absolutely undefeated Shouma aimed to create his own paradise full of liberated slaves. Creating a harem kingdom with the power of cards, this is the independence of a slave harem with item-cheating!
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