Her first sale was in August 2021. She posted a picture of a mask that she had used all day at work and the gym, stained with makeup and sweat. She lied about her age and claimed she was in her 20s. And within 24 hours, she received inquiries from several people. After negotiating with the customers, she sold around four masks for 500 yen (roughly $4) each in a month. Today, she has at least one regular, and brings in about 3,000 yen a month from her used masks. [...] "I don't really want to do this, but I'm not old enough to work. I'm doing it to make money to buy manga. I plan to quit when I get to high school," she told the Mainichi.