Invincible King Tri-Zenon (無敵王トライゼノン, Muteki-Ō Torai-Zenon) is a Japanese anime television series created by E&G Films.
Directed by Takashi Watanabe and written by Katsumi Hasegawa, the anime's 22 episodes were broadcast on TBS between October 14, 2000, and March 17, 2001.
It took over the Saturday 17:30 - 18:00 timeslot once claimed by the Sakura Wars TV series.
During the Edo period, three mysterious space capsules were sent down to Earth and fell in the parts of Japan.
Inside there were three parts of a giant spaceship, the Shinonome (meaning sunrise), the Dawn and the Daybreak and a three robot guardians Tri-Zenon, Gaia-Zenon and Alma-Zenon.
Feared that it might bring chaos to the country, the humans at that time buried them down beneath the ground.
The Empire Zenon Palace is invading Earth to find these objects, to fight this galactic threat the Secrets were awoken one by one.
Duran's character and story is a mix between Reinhard von Lohengramm (Ginga Eiyuu Densetsu) and Char Asnable (Mobile Suit Gundam), he has all their main character traits.
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