niina ryou, charlotte e. yeager, eila ilmatar juutilainen, gertrud barkhorn, strike witches, world witches series, hand on shoulder, silver hair, bad id, bad pixiv id, 00s, 3girls, alternate hairstyle, aqua eyes, blue eyes, blush, bow, brown eyes, brown hair, brushing another's hair, brushing hair, grin, hair brush, hair down, hairdressing, head rest, long hair, military, military uniform, multiple girls, one eye closed, open mouth, orange hair, smile, wink