1girl armor black_gloves black_skirt black_thighhighs breastplate brown_hair cat_tail clenched_teeth collarbone gloves hair_between_eyes kneeling long_hair looking_at_viewer official_art one_eye_closed pleated_skirt red_eyes short_twintails silica silica_(sao-alo) skirt solo sword_art_online sword_art_online:_code_register tail teeth thighhighs transparent_background twintails zettai_ryouiki