無敵王トライゼノン

Invincible King Tri-Zenon (Muteki-Oh Tri-Zenon) is a Japanese anime television series created by E&G Films, directed by Takashi Watanabe, and written by Katsumi Hasegawa. It aired on TBS from October 14, 2000, to March 17, 2001, with 22 episodes (some sources say 26). The story revolves around three mysterious space capsules that landed in Japan during the Edo period. To prevent chaos, these capsules were buried in Hokkaido, Tokyo, and Kagoshima. In modern times, as Earth is invaded by a military organization called "Zeno Palace," the descendants of the families entrusted with the capsules seek to save the world by finding the legendary mecha "Tri-Zenon." The main characters, Akira Kamui, his younger brother Ai, and their classmate Kanna Uryu, pilot Tri-Zenon to fight the enemy. The anime has also spawned related works like novels, manga, and games, including a Game Boy Color game released by Marvelous Entertainment on March 9, 2001. The anime features theme songs by Megumi Hayashibara: the opening theme "Unsteady" and the ending theme "Lost in You." While the anime did not achieve high praise at the time, it remains a representative work in the mecha anime genre.