Site Policy

Regarding Copyright:

Individual information (text, photos, illustrations, etc.) posted on this homepage is protected by copyright. Moreover, the entire content of this homepage is also subject to copyright as an edited work and is protected by the copyright laws of various countries and international treaties.

For all or part of the content on this homepage, you may quote, reproduce, or replicate it through appropriate means by indicating the source, as permitted by copyright law for private use or quotations. However, this does not apply if there are indications such as "reproduction without permission is prohibited."

You are not allowed to make unauthorized modifications to either the entirety or any part of the content on this homepage.


While every effort is made to ensure the accuracy of the information on this homepage, there may be technically or legally incomplete descriptions or typographical errors. We do not assume any responsibility for any actions taken by users based on the information on this homepage.

We cannot be held responsible for any damages incurred by users due to the suspension of services on this homepage caused by maintenance, fires, power outages, natural disasters, interference by viruses or third parties, or other force majeure events.

Downloading and installing browser software, various tools, etc. are the responsibility of the user. We do not assume any responsibility for damages or problem resolution related to downloading and installing.

Regarding Links:

In principle, linking to this homepage is allowed without prior notice. However, in cases where there is an obvious intent for abuse or the content of the linking source violates laws or public morals, we may request the removal of the link. Please understand this in advance.

Please refrain from displaying this homepage within a frame, as it may cause misunderstandings.


This homepage may change or delete its content without prior notice.