Younger brother of mangaka Yuuichi Hasegawa.
series composition
TV anime / 2010
TV anime / 2009
TV anime / 1999
TV anime / 2011
TV anime / 2006
TV anime / 2003
TV anime / 1998
TV anime / 2008
TV anime / 2007
Short TV anime / 2004
screenplay
TV anime / 1997
original creator
TV anime / 2000
TV anime / 2005
TV anime / 2015
script
OVA / 1997
TV anime / 2012
TV anime / 2016
TV anime / 2014
Movie / 2000
ONA / 2008