You can have the following two URLs:
http://www.asahi-net.or.jp/~User ID; which uses your User ID
http://www.ne.jp/asahi/your choice 1/your choice 2; which uses the FreeAddress Service

Each website is an independent website, which will be stored in different directories. Please note that it is not a forwarding address.

Please refer to the following webpage for details of FreeAddress Service.
Personal Homepage Service: FreeAddress Service