1girl absurdres ass bangs black_footwear blush butterfly_hair_ornament chinese_commentary christian_louboutin_(brand) closed_mouth colored_eyelashes colored_shoe_soles commentary_request cup echidna_(re:zero) from_behind full_body hair_between_eyes hair_ornament high_heels highres long_hair looking_at_viewer looking_back nude pee peeing peeing_in_cup purple_eyes re:zero_kara_hajimeru_isekai_seikatsu shiny_skin shoe_soles shoulder_blades sidelocks signature simple_background smile solo spread_legs squatting teacup thighs white_background white_hair xiaoxi0619