ビットコインならbitFlyer 暗号資産（仮想通貨）

1. Download and install the app, open it, and select your region and language. 2. Sign up with your email, complete identity verification, and enable two-factor authentication in Settings. 3. Add funds via bank transfer or supported payment methods, or deposit crypto to your wallet address. 4. Tap Buy or Sell to place a market or limit order, review the quote and fees, and confirm the trade. 5. Set price alerts, schedule recurring buys, monitor your portfolio and history, and withdraw funds or crypto when needed.