Woojin Kim explores languages as social constructs, focusing on endangered Asian languages. The Person Who Can Wear This Golden Shoe addresses the near-extinct Ainu language and revival efforts. The film is based on seven unanswered emails from a narrator investigating disappearing Asian languages, sent to Ainu language stakeholders. These emails, while discussing Ainu, relate to other Asian languages in similar social contexts. The film's structure draws from Cinderella-type folktales, which exist in over 500 versions worldwide. Historically, folktales positioned people within societal frameworks, akin to how learning a language situates individuals within a society.