Shown throughout the series is the fact that Aiko is an android with an outdated computer and poor size memory. As the other three are based on storybook monsters, it's probable that Aiko is an updated version of Frankenstein's Monster. -ko is a common suffix for female names in Japanese, and the &quot;ai&quot; may be derived from &quot;Artificial Intelligence&quot;. She performs housekeeping duties for the other girls because of her devoted mind. Her weight is 300kg or more, and she hopes to get her own human-type body.    Source:Wikipedia

Four Netherworld Princesses have come to the human world; witch Uma, vampiress Pachira, werewolf Liru, and android Aiko. But they know nothing about human life and their mistakes make up their daily adventures. Meanwhile, the evil Dr. K-ko wants proof of the supernatural to gain admittance into the scientific elite and what better than one, or all, of the princesses -- if her plans didn&rsquo;t have a tendency to go awry.

[Twitter](https://twitter.com/akekodao) | [Agency Profile](http://amuleto.jp/talents/AkesakaSatomi.html) | [Blog](http://blog.animate.tv/akesaka/)

Satomi got her start in show business in 2001 when she won the "Idol Grand Prix", an idol contest sponsored by the manga magazine Nakayoshi. She became an event character for the anime "Tokyo Mew Mew" by joining the group Mew Five. She made her debut as a voice actress in 2004 in with role of Anzai Futaba from Koi Kaze, and as a stage actress a year later. She released her first single "Akeban!" in 2011. As a part of the BanG Dream! project, she also played the keyboard for the band [Roselia](https://anilist.co/staff/153170/Roselia) as the character Rinko Shirokane up until September 2018, when she was forced to quit after suffering sudden deafness twice. Before Roselia, she had been playing the piano since a young age, and previously played classical music.

Satomi's hobbies include using computers, drawing, reading, gaming and sleeping. Her favorite food is umeboshi, and she loves animals, especially cats.

(Source: BanG Dream! Wiki, edited)