HappinessPlus is trusted by more than twenty thousand Amazon.co.jp customers in Japan. They have been selling on the Amazon.co.jp marketplace since 2016. They offer a few thousand products from SHENGMEI, Ｙヤクニタツ, ドリームサウンド(Dreamsound), 千银の屋, FineGood, and other brands.
They are a Top 500 Amazon.co.jp seller, ranked 160th overall. However, a month ago, they were ranked 134th. Seller rank is based on the number of positive reviews received during the last 30 days.