We do not have a payment system for collecting content usage fees from students. I heard that payments can be made using PayPal on JV-Campus, but how exactly does this work?

If your school does not have its own payment system, students can complete the payment process using PayPal, which is implemented on the JV-Campus portal. In this case, JV-Campus collects the content usage fees from students through PayPal on behalf of each university.
The content usage fees collected by JV-Campus will be paid to each university through the University of Tsukuba every six months.