I Am a Duelist in Another World

Yu Dou traveled to the parallel world of Yu-Gi-Oh! What? Play cards! This is what I'm best at! Sorry, you don't have 40 cards in your deck and can't participate in the duel. Why don't my cards listen to my commands? Hateful! This girl is so cold, huh? She turned out to be my childhood sweetheart! I didn't expect such a good thing to happen! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.