Despite returning victorious from a dangerous struggle, Kanata and his friends have, in a sense, lost a key ally, the amnesiac magus Noir. Having partially recovered her memory, Noir reverted back to her former personality: that of Mystere, who acts in a patronizing manner toward her master Kanata. However, Mystere remembers detecting a signal from Histoire, a mystical city, during her former life as an artificially intelligent magus. Meanwhile, Tokio disappears from Rock Town while hunting down the ghosts of his past; however, shocking revelations await the deeper his search goes. As Kanata, his childhood friend Ellie, and the magus diva Ciel set out for Histoire, a hostile organization named Ideal sends assassins after them. If Kanata wants to stand a chance at accomplishing his dream, he must uncover the unpleasant truth about Ideal—and some of his closest allies.

Japan, 2019, just before the dawn of a new era. Suddenly, a rift to another dimension appears in the sky, revealing an alternative world Shinkoku Nippon, with the sky and the earth upside down. This parallel world keeps their former militarism, with its era being Eternal Showa. The military invades the real Japan with giant humanoid robots called Garann and their gas weapons Genmu, rendering our modern weapons ineffective. Shinkoku Nippon instantly seizes the government and achieves de facto conquest of Japan. The new era, Reiwa, has now arrived for Japan. (Source: MAL News)

Natural disasters have devastated planet Zi, killing off almost all life. A thousand years later humans have gradually re-established civilization, salvaging ancient Zoids through diving and mining efforts. In a village whose most previous item is a giant sword which they worship as a holy symbol. A teenage boy discovers an ancient Liger-type Zoid while on a deep water salvage operation. Suddenly the village is attacked by skeletal Bio-Zoids intent on stealing a powerful generator located in the village. Our teenage hero awakens the Liger and discovers that the town`s sacred sword is the Liger`s weapon, together they fight off the mysterious Bio-Zoids. At least for now... (Source: AniDB)

A century of bloodshed between warring star systems has plunged nearly 200 worlds into the flames of war. Now, an uneasy truce has settled across the Astragius Galaxy... Chirico Cuvie, a special forces powered-armor pilot is suddenly transferred into a unit engaged in a secret and highly illegal mission to steal military secrets—from their own military! Now he's on the run...from his own army! Unsure of his loyalties and to cover their own tracks, Chirico is left behind to die in space. Surviving by luck, the renegade is now hunted by both the conspirators and military intelligence. He is driven by the haunting image of a mysterious and beautiful woman—the objective of their mission, and his sole clue to unraveling their treacherous scheme. But the conspirators will do anything to preserve their mysterious agenda... (Source: AnimeNfo)