You will receive renewal notice from Tsukaeru.net about 30days before the renewal date.
However you need to approve Email validation and re-install new certificate on your server.
Please contact to Support Mail if you request SSL installation.
Create SSL certificate order 8,000円yen
SSL installation（Shared server、VPS with Plesk） 8,000yen
SSL certificate Load balancer settings（Tsukaeru Cloud） 10,000yen~
SSLinstallation（Server with No Plesk）15,000yen~