I Prepared for a Beast Parade and Got Summoned into the Wrong Game Kingdom

Minato Takase thought he was ready for a fake beast parade and a memory palace tournament. Then a glowing seal dragged him into another world, and the rules in his favorite game started acting like they had teeth. He woke with a borrowed crown on his desk, a missing earring tied to his wrist, and a power that could improve the tools ordinary people used every day. That should have made him useful. It did. It also made him dangerous, because he kept seeing route flags where other people saw choices. Minato keeps building palace rooms in his head, and those rooms have started to grow on their own. The more he trusts the game, the more the world proves it can bleed past his plans. Someone is us...