Mashin Eiyuuden Wataru
Japanese title: 魔神英雄伝ワタル
Alternative titles: Mashin Eiyuden Wataru, Spirit Hero Wataru, Keith Courage, Adrien le sauveur du monde
Type: TV
Source: Original
Episodes: 45
Status: Finished Airing
Aired: Apr 15, 1988 to Mar 31, 1989
Broadcast: Unknown
Duration: 24 min per ep
Rating: G - All Ages
Studios: Sunrise
Producers: Asatsu DK, Nippon Television Network
Genres: Action, Adventure, Comedy, Sci-Fi
Themes: Isekai, Mecha

A 9-year-old boy named Wataru Ikusabe is magically transported to a magical realm of the gods called Soukaizan which he is supposed to save. In his quest to save the realm, he manages to transform a clay sculpture into a somewhat autonomous (small) Super Robot.

(Source: Wikipedia)