After discovering the existence of demons in Tokyo, the original Cyborg crew led by Dr. Gilmore find themselves in conflict with Devilman, a strong demon believed to be in league with the war-profiteering terrorist organisation, Black Ghost. Meanwhile, a bigger threat emerges when Dr. Adams, a Black Ghost scientist unleashes his new line of high teen Cyborg models against 009 and his friends.

In the human realm, witches and wizards seem to be mere creations of fantasy. Ever the adventurous teenager, Mirai Asahina sets out to disprove this notion by following the tracks of a peculiar shooting star that had fallen the night before. Sure enough, Mirai soon has a chance encounter with Liko—a clumsy witch apprentice who hails from the Magic World, a colorful realm inhabited by magicians. As if by fate, the appearance of strange villains forces Mirai and Liko to join hands. In doing so, they unleash their strength as a pair of legendary magicians—the "Maho Girls Precure!" Now gifted with unbelievable power, the unlikely duo embarks on an adventure filled with magical spells and powerful gemstones. Along the way, the two girls discover the hidden marvels that tie their individual worlds together.

A transfer student Asai Mugi is a painfully shy girl. She is so shy that she can't speak when she becomes seriously nervous. However, for some reason, she is spotted and recruited as a member of the drama club.

In the year 2032, the legendary idol unit "7th Sisters" suddenly retired from the industry and disappeared. That was the end of the idol industry... until two years later, when a young glory-seeking employee is appointed to be the leader of Tokyo's next generation idol studio, "777 (Three Seven)," commonly referred to as Nanastar. However, the city continues to believe that idols are a thing of the past, and Nanastar is no exception. Their slump continues, but one day a mysterious and beautiful female manager approaches you and says, "If the idols of the past are gone, we'll just have to make new idols! True "sisters" linked by powerful bonds!" The story of the idols of the future, the Nanastar Sisters, will now unfold. (Source: Tokyo 7th Sisters Wiki)