The Duel King Who Keeps Snagging His Partners' Sister Cards

After transmigrating into the world of Yu-Gi-Oh!, the card game fanatic Hua Shouye unexpectedly obtained a 【Make Yourself at Home】 System?! He can earn System points just by helping women. Those points can be used in the System shop to exchange for all kinds of items: Duel cards imbued with supernatural power, strange artifacts that control the power of darkness, and card spirits with all sorts of spells... To become the world’s number one Duel King, Hua Shouye begins helping the women around him in every way he can. As a seasoned card game fanatic, he knows all too well that women are a real nuisance on the road to becoming king. But... Nuisance women are always as unstoppable as a flood. And that’s not all. Hua Shouye, a die-hard machine-type fan, discovers that every card spirit he unlocks in the System shop is a waifu card spirit, and every card he gets is a waifu card, too?! “Looks like I’ll have to change my approach...” Hua Shouye said. “If that’s how things are...” “Then I might as well become a Waifu Card Duel King who romances them all!”