Visiting Professor

Went to Nagoya University to talk over the issue of our future collaborative research work.
As it turned out, they would like me to be a visiting professor. Visiting professor? I did't have any idea what the post was like. I am not the least bit willing to live away from Tokyo especially after this comfortable house was completed. They reassured me saying it was not like that at all. They just want me to visit the university once in a while to "instruct" students there.
In the course of our collaboration, there might arise such situation where I am willing to "instruct" students. But whatever the content of "instruct", it doesn't need such title as "professor" in any ways. That's authoritarian atmosphere prevailing in academy.