RWBY is an American anime-influenced 3D computer-animated web series created by Monty Oum for Rooster Teeth. It is set in the fictional world of Remnant, where young people train to become warriors to protect their world from monsters called Grimm. The name RWBY is derived from the four main protagonists' forenames: Ruby Rose, Weiss Schnee, Blake Belladonna and Yang Xiao Long, and their respective thematic colors.
Following several promotional trailers, the first episode was screened at Rooster Teeth's convention, RTX, and premiered on their website on July 18, 2013. Subsequent episodes were released weekly, first to Rooster Teeth subscribers and then to YouTube a week later. Following Oum's death in 2015 during the production of the third season, there was an overall shift in the series production and release schedule. Despite the death of its creator, the remaining crew members confirmed their intention to continue the series. Following the eighth volume, the series was moved to Crunchyroll. Volume 9 premiered on Crunchyroll on February 18, 2023.