Rule 34 Dev - 1boy aqua_eyes aqua_hair armpits arms_up black_hair cosplay demon_slayer_uniform gem gradient_hair hana_ni_nare headband highres japanese_clothes jewelry kimetsu_no_yaiba long_hair looking_at_viewer male_focus multicolored_hair solo sword tokitou_muichirou two-tone_hair uzui_tengen uzui_tengen_(cosplay) weapon|23489745201