Ain

A 14-year-old girl who resides in her workshop in the basement of the Ryōunkaku in Asakusa, Tokyo. A technical genius with no prior scientific knowledge, she is able to create electronic devices far beyond the capabilities of the current era. Some of the devices created include early versions of a modern computer, complete with typewriter keyboards and cathode ray tube display monitors. In the graphic novel, one of her ongoing works is a mysterious robot which she refers to as Father (お父さん, Otō-san). Despite being 14 years old, she often displays the maturity of an adult. She is also shown to be capable of generating electricity from her hands when she takes on a tank squadron later in the story.