Rule 34 Dev - 1boy belt blonde_hair blood blood_in_mouth cryokinesis demon_boy douma_(kimetsu_no_yaiba) fangs fingernails hand_fan hat highres japanese_clothes kimetsu_no_yaiba male_focus medium_hair multicolored_eyes muscular muscular_male pectorals reiyamame sharp_fingernails solo symbol-shaped_pupils turtleneck|22453880553