If no one mentioned it already. A useful Japanese phrase for this genre is “無抵抗” muteikou, it literally means “non-resistance “. No one seems to have had trouble find ing what they need, but I thought I’d chime in a see if it helped.
There is a delivery health shop here in Tokyo called “Muteikou” and their style is non-resistance. I’ve been tempted to see if they allow foreign customers and try it out.