One night, right before summer vacation, Manatsu Daichi, a second-year in high school, sees a weird round rainbow floating in the sky above Tanegashima and ventures there alone. He has seen this rainbow before. With the memories of his father's mysterious death and an encounter of a strange boy and girl, Daiji arrives on the island while the alarm of a building labeled Earth Engine is going off. Someone asks him if he is a captain, just as robotic intruders from Uranus called Kill-T-Gang arrive. The battle around the shining stars is about to begin.

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]

A member of the Time Patrol finds out that there is a disturbance in Japan, 1570. While heading to that particular time and location to investigate, she is attacked and ends up stuck underground the Nohara residence at the end of the 20th century Japan. Having limited resources at hand, she is forced to ask for the help of the Nohara family. Together they go back in time and meet with a samurai named Fubuki-maru who believes that they are the legendary three persons and dog whom someone from her family would eventually meet in a crucial moment. The lonely samurai asks for their assistance in defeating the man that possesses strange magical powers, the sinister Unkokusai lord. (Source: ANN)

In the year 3195, there was a war between an army of robots and the humans. When Shaian, a sentient combat armor, lost his companion in battle, he shut down until his internal systems spotted a new human. It's now almost a 1000 years later, and Shaian's greatest enemy is still alive and doing battle in Brazil. With a new friend`s help, Shaian may be able to stop this evil force before another war rages over the continent.