Born on May 26, 1970. Born in Tokyo and grew up in Nigata. Graduated from Nigata Prefectual Nagaoka High School. His blood type is A. He won an honorable mention prize in the Weekly Shonen Jump. "New Manga Hop Step Award" with the work Podomakku. Later, while he worked as an assistant, he presented works such as Sengoku No Mikazuki. (Crescent Moon in the Warring States) and Rurouni-Meiji Kenkaku Romantan (Meiji Swordsman Romance Story). The serialization of Rurouni Kenshin started in 1994 and concluded in 1999. His hobbies are to draw, read, play video games, read American comic books, and make model figures.
Kazuki Mutou is mortally wounded saving a girl from a strange monster, but is given a new life through the power of the alchemically-made Core Iron. Along with a second chance, this grants him the ability to use his own Buso Renkin, or Alchemy Weapon. Joining forces with Tokiko, the Buso Renkin user he'd saved earlier and who gave him the Core Iron, he uses his newfound powers to fight the malevolent Homunculus monsters and protect his friends and the rest of mankind.