Rule 34 Dev - 1990s_(style) choujin_gakuen_gowcaizer game guitar hellstinger hishizaki_shaia_(gowcaizer) instrument kaiza_isato kash_gyustan oobari_masami pixel_art retro_artstyle school_uniform shigure_kyosuke son_karin technos third-party_edit warmers|4185822303