Yoshiki Takaya is a mangaka best known for creating the manga Guyver, which has been multiply adapted as anime and live action films. Guyver was serialised in Shōnen Captain for the lifetime of the magazine from 1985 to 1997. When Captain was cancelled, the manga moved to Shōnen Ace, published by Kadokawa Shoten, who also reprinted the collected volumes from the beginning. As of December 2005 there are 23 tankōbon available.

Takaya began however as an H manga artist under the pen name Morio Chimi (ちみもりを Chimi Moriwo), with several works printed in the adult manga magazine Lemon People, published by Kubo Shoten. The best known of these is Hades Project Zeorymer, which was adapted as a four episode OVA by AIC.