U.S. fast fashion retailer Forever 21 Inc. will re-enter the Japanese market, planning to sell its products online from February before opening stores after April, its Japanese partner said Wednesday. The Los Angeles-based firm filed for bankruptcy protection in September 2019 due to intensifying competition with online clothing retailers. It pulled out of Japan the following month. The brand was later bought by an American firm. To re-enter Japan, it has teamed up with Japanese apparel company Adastria Co., which boasts a high number of online members. It plans to open stores in shopping cent…