bitFlyer is the leading Japanese exchange in trade volume. It allows users to exchange Bitcoin for JPY and to trade with margin.
The exchange allows users send and receive Bitcoins in just 1 second, storing said BTC using next generation encryption by DigiCert.
Every single transaction is traceable and irretrievably stored in the blockchain.
Your coins and deposits are available and tradable 24 hours a day, 7 days a week.
The registration is free, depending on the provider there are different fees for the trade.