Shuuto is an energetic fifth grader whose father is an adventurer. Invited by his friends to join the snap club, Shuto spends his days snapping the best shots one after another as he communicates with the phantom lifeform Wonder. However, one day, Shuto's fate begins to move when he learns of the existence of an evil organization, Magnet, which plans to conquer the world using Wonder, and that Shuto's father has gone on a journey to defeat Magnet and has disappeared. From the story of his father's friend Gengoro, Shuto learns of his father's last contact location, and decides to visit there with his companions. But what did Shuto see there...!?