Rule 34 Dev - 1boy black_hair black_pants black_socks blue_background blue_eyes demon_slayer_uniform fingernails from_side hand_on_hilt haori highres japanese_clothes katana kimetsu_no_yaiba long_hair long_sleeves looking_back low_ponytail male_focus on_one_knee pants pleated_pants ponytail sandals simple_background socks solo sword tabi tomioka_giyuu weapon yoshioka_suke zouri|25570399842