RWBY (pronounced "ruby") is an American anime-style web series and media franchise created by Monty Oum for Rooster Teeth. The show is set in the fictional world of Remnant, where young people train to become warriors (called "Huntsmen" and "Huntresses") to protect their world from monsters called Grimm. The name RWBY is derived from the four main characters' forenames: Ruby, Weiss, Blake, and Yang, as well as their associated theme colors; Red, White, Black, and Yellow. Following several promotional trailers, the first episode was screened at the Rooster Teeth convention event RTX and then released on their website in July 2013. Subsequent episodes were released approximately weekly, first to Rooster Teeth's subscribers and then to YouTube a week later. The series became a viral hit, and a second season, subtitled Volume 2, was released in July 2014.