Card Messenger's Dimensional Everything House

Izayoi Hiyo is a young man who is famous in every world. Sometimes he is so powerful that it makes people despair, and sometimes he makes people feel ordinary. The Dimensional House of Everything is an urban legend that I don't know who started it. Legend has it that only very lucky people can enter this room of all things, and your wishes can be fulfilled basically without paying any price, one person at a time. "Are you the lucky one? I will fulfill your wish, but don't go too far." This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.