Valkyries—legendary female warriors from the land of gods, Asgard—are sent by Odin to protect Earth against the growing threat of demons. To overcome these threats, nine valkyries under the guise of the Saotome sisters will have to level up by performing a variety of romantic acts with their official lover, Einherjar. Meanwhile, the socially anxious Takuma Akutsu learns that Odin has chosen him as the valkyries' lover. Despite his utter horror, however, he agrees to let the sisters stay in his big yet empty house to help them in their war against demons. With nine beautiful women sharing his roof, will Takuma manage to prevail over his fear of society and become someone worthy of saving the world? [Written by MAL Rewrite]

At Shirahamazaka High School, a special recital is held every year in which music students are able to showcase their talents in front of professionals and other prestigious guests. A third year, Konatsu Miyamoto desperately wants to sing in her last high school recital, but because she screwed up the year before, the vice principal has barred her from participating. That's when Konatsu comes up with a new plan to get involved; instead of joining the official choir, she'll form her own singing club with her friends! Unfortunately this proves to be harder than she imagined. Her friend Wakana Sakai, has given up on singing, for one, and Konatsu needs more than just two members. With only a month left until the recital, will Konatsu be able to find enough members for her club and actually be ready to sing at one of the most important events of the school year and graduate without regrets?

Masane Amaha and her daughter Rihoko are on the run from a government child welfare agency that wants to take Rihoko away from her mother. They are caught and Rihoko is taken away. Meanwhile, Masane is attacked by an advanced weapon that can disguise itself as a human being. When faced with the danger, a strange light emits from her wrist and she transforms into a powerful being. She destroys the weapon and consequently becomes involved in a power struggle between powerful organizations, with her at the center of their attention. Because she holds the greatest power of them all, the legendary Witchblade. (Source: AniDB)