Vintage Japanese Pleated Skirt+Sweater Set Size S

Open to offers because I know this isn’t in perfect condition—the previous owner owned a restaurant and she loved buying clothes from japan (this is one of her many skirt+sweater sets) set has small stains on the skirt and on sweater—I think soy sauce.. (see photos) with some tender washing though I think it could definitely be fixed :) The only worn down part is on the button, no holes or rips anywhere else. Fits a size S w/elastic waistband