Keroppi is the most popular frog of Donut Pond, the largest and bluest pond. He’s fun-loving very adventurous, being fearless and very active. His talents are singing and swimming. Nothing discourages for long – this guy’s an optimist and brings sunshine to the lives of his family and friends. He is part of the mischievous Ganta-Kyorosuke-Keroppi trio. Keroppi and his friends share his love for playing games, especially baseball and boomerangs.

He lives with his family in KeroKero house, found next to the Donut Pond. He is part of a triplet, her siblings being Pikki and Koroppi. They are masters of illusion: they can jump up and down so fast, they look like ten frogs instead of three!