Twins Penny and Paulie are thrilled to be in Tokyo—even if they're stuck in a boring hotel while their dad attends "important" meetings. But when they meet a strange, frog-like creature named Shimesu in the hotel pond, their trip turns into a wild adventure.

Shimesu is a yokai, a supernatural being, and he's in big trouble. Banished from Yokai Mountain, he needs their help to get home. Soon Penny and Paulie are diving through his magical water vortex to destinations across Japan and experiencing the country in ways no visitor ever could!


〇日本が大好きな双子の兄妹が日本で不思議な冒険をするグラフィックノベル
〇様々な妖怪が道先案内人となり、日本各地を巡ります
〇大阪城やサムライの装束、神社のしきたり、原宿のカワイイ文化、日本食など日本の文化を楽しく学ぶことができます