Mini OVA episodes bundled with the Blu-ray and DVD releases of Valkyrie Drive: Mermaid.

For the average Japanese high school student, walking to school can be a chore, but for first-year Chio Miyamo, it's always an adventure. Constantly running late due to her long night sessions playing video games, she is forced to come up with new routes to make it to Samejima Private Academy on time. On her many bizarre journeys to school, Chio contends with obstacles like street-blocking detours, overzealous kabaddi players, and befuddled motorcycle gang leaders. But these minor hindrances are no match for the special ops training that Chio, AKA the legendary assassin "Bloody Butterfly," has received from her extensive gaming obsession. Together with her best friends Manana Nonomura and Yuki Hosokawa, Chio will do whatever it takes to avoid her school's harsh penalties for tardiness. [Written by MAL Rewrite]

Following the events of Satsujin Kousatsu (Zen), Shiki Ryougi has been in a coma for two years due to a traffic accident. When she finally awakens, she has no memories of her past and is plagued by a profound loneliness. Even stranger, she notices dark lines encompassing the things around her, and if she touches them she can disassemble the object—something which completely terrifies her. Her friend, Mikiya Kokutou, enlists the help of Touko Aozaki, a mage who can help Shiki understand what her eyes—the "Mystic Eyes of Death Perception"—are truly capable of and how to use them properly. 

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]