Yu-Gi-Oh!: From the Start, I Summon Gadget Beast

In the twenty-first century, a chuuni card player named Xinhai Youfeng died during a card game after throwing a card too hard and hitting his hand against a live wire. Then he transmigrated to a world of card players, where he unexpectedly obtained a deck he could edit however he pleased. He created an [Appmon] deck and began his card-playing career! (This is my first work, so please bear with me.)