A poor young frog living in Rainbow Pond with his mother and father (a toymaker), who becomes friends with a popular and sweet girl frog named Ranatan, despite the differences in their social standings: Ranatan is the daughter of the leader of Rainbow Pond, while Demetan and his parents are tree frogs, which make them automatic outcasts in the community. Together, Demetan and Ranatan enjoy many adventures.
Natsumi which has been moved to a deceased mother's family in Izu, to change schools to the same high school as the cousin, driven into lacrosse. But one day, you know the father and his secret.
Takeshi Hongo is a promising young man with a passion for motorcycle racing. However, his dreams are suddenly ruined when he gets kidnapped by Shocker, the evil secret organization planning to dominate the world. After being remodeled into a cyborg, Takeshi escapes and swears to protect the world from the inhuman monsters.
