Yu-Gi-Oh!: Your Deck Is Niche and Bizarre

The protagonist, You Yu, accidentally transmigrates to a world where dueling is everything. Here, a card game can get you killed, and a loss can get you sealed away. Fortunately, he awakens an intelligence System that gives him one piece of information about his opponent before each duel. If his deck is obscure, then he'll just have to be a little more unhinged. This is my struggle to survive. Many years later, after reaching the pinnacle of dueling, he gives an interview. “Mr. You Yu, what is your philosophy of dueling?” “I believe every card has a reason for existing. At the right time and place, it can unleash boundless power.” “That sounds a little too profound. Could you sum it up more simply?” “I suppose it can be summed up in two words.” “Confidence? Courage? The bonds you share?” You Yu smiled faintly and said, “Gotcha.”