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)

Memories is a compilation of three standalone short films encompassing different genres. Magnetic Rose In the far reaches of space, after tracing a distress signal to a large abandoned space station, a pair of engineers—Heintz Beckner and Miguel Costrela—find a derelict mansion and decide to explore on foot. Their investigation reveals a dark secret surrounding the fate of Eva Friedel, a renowned opera singer with a tragic history. Hallucinations soon begin to plague them, and they must fight to retain their sanity in order to escape the station alive. Stink Bomb Hapless lab technician Nobuo Tanaka consumes some pills at his laboratory to cure a cold. Unknown to him, however, the pills are actually experimental drugs that enhance his flatulence to a lethal degree. As the toxic gas escaping him kills everyone in his vicinity, he is ordered by his superiors to retreat to the company headquarters in Tokyo. The journey to the city is made all the more arduous as Nobuo struggles with his deadly odor while the police, military, and foreign adversaries are hot on his trail. Cannon Fodder In a fortress city filled to the brim with cannons, a young boy wishes to surpass his father by becoming a revered artillery officer. Despite no proof of an enemy nation, he cannot resist the urge to partake in the daily bombardment routines organized by the city. Whether at school or just before bedtime, he only dreams of someday firing a cannon for the sake of his homeland. [Written by MAL Rewrite]

Amakawa Haruto is a young man who died before reuniting with his childhood friend who disappeared five years ago. Rio is a boy living in the slums who wants revenge for his mother who was murdered in front of him when he was five years old. Earth and another world. Two people with completely different backgrounds and values. For some reason, the memories and personality of Haruto who should've died is resurrected in Rio's body. As the two are confused over their memories and personalities fusing together, Rio decides to live in this new world. Along with Haruto's memories, Rio awakens an unknown "special power," and it seems that if he uses it well, he can live a better life. But before that, Rio encounters a kidnapping that turns out to be of a princess of the Bertram Kingdom that he lives in. After saving the princess, Rio is given a scholarship at the Royal Academy, a school for the rich and powerful. Being a poor orphan in a school of nobles turns out to be an extremely detestable place to be.

All hope seems lost when the world is suddenly invaded by aliens. Earth's only defense is a small three-person team known as the Special Counter-Aliens Task Force, consisting of an anonymous director, the tyrannical Shiro, and the easygoing Arikawa. The luck of the Task Force improves when Arikawa finds a teenage boy lying alone on a hill. The boy, Kakashi, is humanity's only hope—he has power previously unbeknownst capable of defeating the aliens! However, without any memories and with no knowledge on how to use his power, Kakashi is left clinging to Arikawa and Shiro as well as the only remnant of his previous life: his broken cellphone. Kakashi is conflicted by the fears and emotions clouding his mind and he calls his own motivations into question. Can he overcome his doubts and internal struggles and save the world? [Written by MAL Rewrite]