Remove the filled area and make it the background

(EasyNegative), an6, verybadimagenegative_v1.3, (badhandv4), (worst quality, low quality:1.2),normal quality,(lowres),(monochrome),(grayscale),(bad legs),(split legs),(missing legs),(extra legs),(bad feet),(unexposed chest:1.4),(Cat ears:1.3),(Horn:1.4)