Films in this style are an justification for exhibiting scenes involving nude or semi-nude ladies. Recruited by studio Madhouse straight out of large school in 1986, Koike grew to become anything of a protégé to veteran director Yoshiaki Kawajiri and reduce his teeth as an inbetween animator for this sort of films as Cyber City Oedo 808 and Ninja Scroll just before placing out on his very own tasks through the 2000s.