Rule 34 Dev - 2boys aged_up black_hakama blonde_hair carrying child child_carry closed_mouth coat colored_tips commentary_request father_and_son forked_eyebrows hakama half-closed_eyes hand_up hands_on_another's_chest hands_up haori happy holding holding_sword holding_weapon if_they_mated japanese_clothes katana kimetsu_no_yaiba korean_commentary korean_text long_sleeves looking_at_viewer male_focus medium_hair multicolored_hair multiple_boys no_shoes ponytail red_hair rengoku_senjurou short_hair sidelocks smile streaked_hair sword tabi ungungzza upper_body weapon white_background white_coat wooden_sword|18169703838