Rule 34 Dev - 1boy blue_eyes chest_protector chest_tattoo closed_mouth collarbone greyscale heracles_(shuumatsu_no_valkyrie) highres long_hair looking_down male_focus monochrome muscular muscular_male pectorals shirtless_male shoulder_guard shoulder_tattoo shuumatsu_no_valkyrie solo spiked_hair tattoo topless topless_male|24207294033