1girl absurdres apron back_bow bangs blue_dress blue_eyes bow braid breasts dress frilled_apron frilled_dress frills grey_hair highres holding holding_knife huangyou izayoi_sakuya knife maid maid_apron maid_headdress medium_hair panties puffy_short_sleeves puffy_sleeves serious shirt short_sleeves small_breasts solo thighs touhou twin_braids underwear waist_apron waist_bow white_apron white_bow white_panties white_shirt white_wrist_cuffs