An original character is a character created independently by a creator (an individual or an organisation), and for non-commercial creators the concept of “original character” is as widely used as that of homoerotic works. Depending on the field of creation, the vehicle for an original character theoretically includes, but is not limited to, anime, manga, games, and novels. It can be purely original, a character created to allow people to share a particular worldview and setting, or a derivative creative element related to an existing work.
Famous Original Characters
From the official figure sale site
BLACK★ROCK SHOOTER was originally an original character illustration by Japanese artist huke published on Pixiv on 26 December 2007, and was set as a 15 year old brunette girl armed with a cannon in her hands and a double ponytail of varying lengths on her left and right sides. Good Smile Company purchased the character and produced the character model, which was subsequently released in an anime.In 2012, the TV anime BLACK★ROCK SHOOTER was broadcast.
By Pixiv, ID=49706761
Kelsey, an original character created by Arknights game producer LowLightK while participating in a Pixiv event in 2015.In 2017, Arknights Productions was officially established, and after changing some of the settings at a later stage, Kelsey became an important character in the Arknights game.