Dual-Roles System

Perhaps the dual-roles system is a good choice. The system does not change the location where the NFT was originally held when the loan is made, but instead creates a new NFT in wallet to declare the account's ownership of the NFT. However, the disadvantages of dual-roles are also obvious. Firstly, the borrower does not enjoy the complete NFT equity. Secondly, it also needs to spend a lot of gas fee when generating the second NFT.