Yu-Gi-Oh!: Mirror Duelists

This is a world where duel monster cards are popular all over the world. However, what is not known is: the world of elves that goes through the mirror, and... The real duelists who fight against those ferocious elves. They use the power of "card box" and "contract card spirit" to transform to fight against the ferocious elves, and then fight for their lives with other duelists as duelists! You can't survive without fighting! Yushinji, who came from time travel, looked at the card box in front of him and the elves and duelists who had just fallen in front of him: Isn't this a hybrid version of Dragon Knight and Yu-Gi-Oh? !