Currently, this space is not used. It looks like it was just opened recently, as nothing has been customized. The webspace still has all the default appearances of Yoka Net. The only thing that stands out is a single note from the operator:
"If you're interested in my Navi training service, please use my e-mail instead. Note that as of now, that service is on indefinite suspension. I'll notify immediately when it becomes available again."