Fan Casting Celebi in Pokémon Mystery Dungeon (Anime)

A Pokémon at service of Queen Zacian. He and his best friend Zeraora went to the Human world to study it, but then they met Mamoru as a kid who was at an orphanage after his uncle got arrested. Then, they were scold by the queen for making contact with a human, but soon she discovered that Mamoru is the one who holds the power of the devine aura like the prophecy says. Celebi brings Mamoru to the pokemon world. He is usually childish and playful.