Website Under Maintenance

Critical vulnerabilities in PHP, a technology widely used by websites and online services, were disclosed on October 21, 2026, and security updates were released. Japan’s Information-technology Promotion Agency (IPA) has also issued an advisory.

To prioritize the safety of our visitors, this website is temporarily unavailable while security measures and functionality checks are carried out. Access will be restored once these checks are complete.

Please allow us some time to complete this work and try again later. We apologize for the inconvenience and appreciate your patience and understanding.