About the course

Can I subscribe to both Gold Key (annual plan) and Silver Key (monthly plan)?

Each person is limited to one account.

Please register for whichever course you prefer.

​Is it okay to register multiple accounts by myself?

* Please note that we are unable to accept registrations for both courses.

Other questions about the course

• Q.
  Please explain the difference between Gold Key (annual plan) and Silver Key (monthly plan).
• Q.
  I would like to change from Silver Key (monthly plan) to Gold Key (annual plan).
• Q.
  【silver key(月額)】330円コースから550円コースへ変更したいです。

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