1boy 1girl aged_down arms_at_sides bow braid braided_ponytail brother_and_sister child clinging floral_print flying_sweatdrops full_body greyscale hair_ribbon hakama happy height_difference hiding hiding_behind_another japanese_clothes kimetsu_no_yaiba kimono long_hair long_sleeves looking_at_viewer monochrome obi parted_bangs ponytail ribbon road sandals sash shy siblings simple_background single_braid smile socks standing tabi tomioka_giyuu tomioka_tsutako tuduri zouri