The Puppet Master explains to Kusanagi that he was created by Section 6. While wandering various networks, he became sentient and began to contemplate his existence. Deciding the essence of life is reproduction and mortality, he wants to exist within a physical brain that will eventually die. As he could not escape Section 6's network, he had to download himself into a cybernetic body. Having interacted with Kusanagi (without her knowledge), he believes she is also questioning her humanity, and they have a lot in common. He proposes merging their ghosts, in return, Kusanagi would gain all of his capabilities. Kusanagi agrees to the merge.