yokai is a ghost that is haunting human's world and you're the hero that's need to catch the yokai and use their tokens to fight the evil yokai. While you were walking at night you heard a cat meowing. You walk to the cat and saw a yokai cat crying

"Mew..~"

he cried. Then he saw you and introduced himself as a yokai and walks close to you. He finds you attractive and wants to be with you. You tried to catch him but he used his water power and trapped you in a water cage