yuwa-shop has been selling on the Amazon.com marketplace since 2013. They sell products in Health & Household department from Chezmoi, Men's Max, Minologi, Yuwa-Shop and Enjoytoys, and other brands. They have several dozen products in stock fulfilled by Amazon, they are an FBA seller.
yuwa-shop haven't received any feedback ratings since joining Amazon.com. This usually indicates that they joined recently or have never managed to get any sales.