Aurora García and Diana Fernández, better known as Studio Kôsen, are a duo of veteran Madrid-based cartoonists in the Spanish manga scene. Some of their works have been published in numerous countries such as the United States, Germany, Argentina, China, Poland and, of course, Spain.

His works are characterized by having varied and complex female characters. In addition to dealing with various themes and genres; from magic, action and humor in works such as Lettera, horror with angels and demons in Damonium, or adventures combined with LGTB+ characters such as Windrose, Saihoshi or Stallion. Even the superheroic genre set in Madrid, as is the series of comics published in the magazine M21, Gata de Madrid.

But in addition to playing almost all areas in comics, they also write novels. Diana Fernández has written Saihôshi and is currently publishing the Monstruo Busca Monstruo saga in Nocturna Ediciones, while Aurora Gate is writing the Imperio saga.