The "engimon" friends Haruo (a papier-mâché dog), Kin-chan (a goldfish-shaped paper balloon), Hebizou (a bamboo snake), Chief Daruma (a daruma doll), and Koume (a wooden doll) always watch over the siblings Yamato and Himi, who live in the Milky Way house in the City of the Seven Lucky Gods. One day, Himi chased after a maneki-neko (beckoning cat) that appeared out of nowhere and disappeared from the house. Although Yamato was surprised when the engimon friends suddenly started moving, he soon went to rescue Himi! Will the engimon’s lucky powers be enough to find Himi?!