Eden 1 rules over about 50 planets throughout the galaxy. With the aid of his two faithful retainers Duke Sukedo and Baron Kakusu, Prince Mito decides to undertake a royal inspection tour of the planets undercover. However, the empire is a dangerous place and is plagued with vice feudal lords and corrupt space merchants, as well as other evil people. Using the royal family's weapon, the combining robot Daiohja, Prince Mito punishes any kind of villians that are within Eden 1's empire.
Unfortunately the series Robot King Daioja is not yet available on Disney Plus. Follow us on Facebook to see when Robot King Daioja becomes available on Disney Plus!
| Directing | Katsutoshi Sasaki | Director |
| Writing | Hiroyuki Hoshiyama | Series Composition |
| Visual Effects | Nobuyoshi Sasakado | Character Designer |
| Visual Effects | Kunio Okawara | Mechanical Designer |
| Visual Effects | Akihiro Kanayama | Animation Director |
| Sound | Chumei Watanabe | Music |
| Sound | Kouichi Chiba | Sound Director |
| Art | Kazuko Katsui | Art Direction |
| Production | Masami Iwasaki | Producer |
| Production | Hironori Nakagawa | Producer |
| Production | Nobuyuki Okuma | Producer |
