Seina's epic misadventures are moving from the depths of space to his home on Earth. While he's made just as many friends as he did enemies on his journey, it's time to go back to those he loves on his own planet. But he quickly learns that things aren't the same as they used to be. (Source: Crunchyroll)

Seventeen-year-old Tenchi Masaki grew up hearing stories about how his ancestor used a sword to seal a demon inside a cave seven hundred years ago. When curiosity gets the better of him, Tenchi goes to the cave and stumbles across the sword from the legend. Thinking that the story is nothing more than a fairy tale, he removes the blade and inadvertently releases the demon, who turns out to be a space pirate named Ryouko Hakubi. Furious about being trapped for so long, she attacks Tenchi, but he is able to repel her with the sword, awakening his inner power. After seeing this, Ryouko takes an interest in her unlikely savior and decides to crash at his place. As if it were a chain reaction, more alien women—Aeka Jurai Masaki, an uptight princess from the planet Jurai; Sasami, Aeka's sweet younger sister; Mihoshi Kuramitsu, a ditzy Galactic Police Officer; and Washuu Hakubi, a wisecracking genius—gradually come in contact with Tenchi and begin living with him. Through his encounters with these five women, Tenchi begins to learn more about his ancestry, newfound power, and the looming threat lurking beyond the skies.

This OVA begins with a tag-team battle between the elegant girls of Dream Team and the heavy-face-painted women of Foxy Ladies. Naturally, the Dream Team gets the crap kicked out of them, but not before one of them makes one strong attempt at lifting the 250-pound Foxy lady over her head. The ones to take their place are Eri and Miki of the Wanna-Be's team. Miki and Eri are both just fun girls who want to have fun, but once they begin their new training with the mysterious Kidou Corporation, the same corporation that trained the Dream Team, they discover that there is something deeper behind their training.

October 1941, as the second World War threatens to destroy the civilized world, an unforeseen complication suddenly occurs. An alien invasion! Despite the sudden appearance of these extraterrestrial aggressors, the Axis and Allies continue their destructive conflict. Only the Kishin Corps and their giant Geo-Armor Robots (a.k.a.: Kishin), developed from a captured alien robot soldier, stand between the Earth and total annihilation! A teenager, named Taishi, suddenly finds himself at the center of a struggle over a mysterious black attaché case entrusted to him by his father, Professor Tokamura. The case contains the controlling mechanism for one of the giant Geo-Armor Robots, and the Japanese Kanto Army, the alien invaders, and the Kishin Corps all want to recover the device! Between the spies, the armies, the aliens, and the Giant Robots, Taishi is in for an epic adventure—if he can survive it! (Source: AnimeNfo)