Tokyo, Japan (June 09, 2021) — doublejump.tokyo (Head office: Shinjuku-ku, Tokyo; CEO: Hironobu Ueno; hereinafter “doublejump.tokyo”), a company that provides NFT business support using blockchain technology, is pleased to announce that they will adopt NFT (*1) of “LINE Blockchain” provided by LINE Corporation through LINE TECH PLUS PTE.LTD. for its…