Sugi is a mobile terminal's FIRST cryptocurrency hardware wallet. It consists of a Sugi card AND the Sugi Wallet mobile application AS an interface. Sugi allows users TO store OR conduct secure transactions IN multiple cryptocurrencies. This The card AND mobile application USE NFC TO WORK hand-IN-hand ON the Android portable device. The card holds a special KEY IN the SECURITY element, AND the USER only needs TO click ON the card ON the portable device that supports NFC TO be able TO access multiple blockchains. Transactions are conducted ON the Internet. The private KEY IS protected BY a UNIQUE protection that only the cardholder knows.