To provide a lease support system for copyrighted work for providing a copyrighted work to a customer through a lease company, which can perform legal procedures for copyright registration and copyright protection.

This computer support system for providing the copyrighted work by a corporate or individual writer to the customer as a lease article has a means for accepting the registration of various copyrighted works such as 3D object; a means for confirming the copyrighted work and issring acceptance information such as registration date to the writer to report the registration acceptance; a copyrighted work database for collectively accumulating the accepted copyrighted works and the information related to copyright such as writer information; a legal material database for accumulating various materials related to law such as a legal procedure necessary for copyright protection; a lease information database for accumulating various pieces of procedure information related to the lease article such as contract information necessary for the lease among the writer of the copyrighted work, a lease agent, and a customer using the copyrighted work; and a database management means for collectively managing each database.