Formerly used the name Kazuyoshi Himaruya before switching pseudonyms to Hidekaz Himaruya.

While working on his webcomic, Hetalia: Axis Powers, he was studying in New York.

- He enjoys photography, collecting postcards and architecture.

- He's a fan of the shows South Park, Higurashi no Naku Koro ni and Happy Tree Friends.

- Colors his art with SAI Painter and Adobe Photoshop Elements 6?