How to create a About Me page auto updated with site admin profile

Hello,
I use New Blog Template to apply the site template to new sub-sites. I understand how lazy users are, so I want to create an About Me page which will show user profile of the sub-site owner. Is this possible? Besides, I have BuddyPress installed and activated.
I found a plugin which can let me use shortcode to call profile of current user. But this is not what I want. I need everyone visit the About Me, s/he will see the profile of the sub-site creator/admin.

Thanks in advance!
Regards
YZ