on-chan, Yume Power Daibouken!
English name: On-chan, Dream Power Big Adventure!
Genres: Fantasy
Type: Special, Episodes: 1
Aired: Aug 5, 2003
Studio: Nippon Animation
Source: Unknown
Rating: G - All Ages
Synopsis:
on-chan and his friends from the universe's Parade Star, for some reason meets the brother and sister, Kenta and Haruka, who is moving from Tokyo to Sapporo along the way, in the middle of a meadow.

The two of them travel to get back to their new home in Sapporo. For on-chan and the other's though, they encounter all sorts of trouble.

At first, Kenta was opposing on-chan's dream power but before he knew it, he was also under its influence...

(Source: AniDB)