|Season 1 Episode 37 - So Many Magical Frogs!|
The magic frogs from the village of magic frogs all got blown into the human world by a storm. At first they went to Onpu/Ruka's place and partied there for a while, then they went to bother Rika and the Doremis and refused to go back to the witch world until the Doremis take them sightseeing/shopping/etc... The Doremis start to feel sorry for these frogs when they find out that they don't have witch apprentices, so they aren't able to turn back to normal. Onpu meets Pop for the first time and gets along well with her. Onpu doesn't really seem to have any ill will towards Rika's apprentices, like Ruka does.
Season 1 Episode 38 - Ryota and the Monster of the Night