There is no expiration date.
Your subscription will automatically continue every month until you cancel your membership.
In addition to completing the cancellation procedure yourself, you will also be cancelled if any of the following conditions apply to you.
<In case of credit card payment>
If it is determined that payment cannot be made due to reasons such as credit limit or expiration of the validity period, your membership may be automatically terminated.
<In the case of mobile carrier payment>
If you cancel your contract with your mobile phone company, your membership will be automatically terminated at the end of that month.