The world we live in is called Earthside in this story. There are the other worlds called Nosfertia, Heavenstia, and Eternalia. When Darknoids from Nosfertia begun invasion to Earthside, Heavenstia sent 3 Animanoids (beast-humans) to prevent it. The lead character Touya had believed that he was a mere human but found he was actually a being of Eternalia. With the help of 3 Animanoids, Touya fights to defend Earthside.

Life seems simple for Koichi, a young student, until he learns that he is the reincarnation of an alien protector who crashed onto the mantle of responsibility as defender of the Earth, Koichi/Babel teams up with a trio of super-powered alien companions to battle the the dark forces of an evil cult leader. The war to save humanity takes Babel from the deserts of southern Asia to the upper east side of Manhattan and ultimately to a final showdown with the master in a hidden base nestled in the Swiss Alps. The action is fast-paced and deadly. The fate of the world rests in the ability of this courageous youth to tame his latent psychic power and use it to defeat the enemies of mankind. (Source: AnimeNfo)

Picture Drama included in Sacred Seven: Shirogane no Tsubasa, where Knight and Fei are in the same school as Alma and others.

Japan is secretly controlled by a tyrannical group of ninjas called the Shinogara. Their finest assassin is a man named Hayate Kanuma, whose father leads the Shinogara. Hayate, however, knows that the secret society's control over Japan is wrong. Sacrificing his own safety, Hayate kills his father. Now he's on the run, safe almost nowhere from his vengeful former comrades except perhaps for the one hiding place he decides upon: his sister. After possibly being fatally wounded, Hayate is able to transfer his soul into his sister's body, temporarily sharing it with her. His sister, Shiori, can awaken Hayate and call upon his ninja abilities when the Shinogara are close at hand but each time she does so, a little more of her true self is lost. This arrangement can't possibly go on forever, so how will Hayate finally defeat the Shinogara? (Source: Cammila Albertson)