Robert is the last hired assassin of the Impostor.CO. He was very hopeful about taking his parasite form, but he is the only one who has been banned from using it because his intelligence is terribly low. Robert is very good at using guns, but his poor intelligence often makes things go wrong in practice. That's why Impostor.CO's management is very reluctant to call him. He was to be fired, but Mitori's defense allowed him to continue working in the company.