Hirayama was born in Kobe and currently does painting, drawing, and performing in Tokyo.
He holds private exhibitions and group exhibitions, and is published in magazines.
He created the logo for the Echigo Tsumari Art Field Kinare.
Publications「Card Game (4999)」(Nieves / Rollo Press, Zurich, 2013),「3444」「Street View」（edition nord., Niigata, 2011 / 2012）and more.

http://www.himaa.cc