What does it mean by copycat works, doujinshi works, and prototype copyrights belong to the original author?

Answer 1

The copyrights of copied works and doujinshi works belonged to the original author. This meant that the original author might have borrowed other works or inspiration when creating the work and transformed them into his own work.

A copy of a work was to directly copy and imitate the original author's work and create it. The prototype of a doujinshi work was a part of the original author's work that was re-created by others in a different form and had no direct relationship with the original author's work.

Although the original works of the original author and the original works of the original author may have some connection, their creative purpose, style, content, and other aspects are independent and can exist and develop independently.