This picture makes me want to give Neumro a big bear hug. (more than usual ^^) I mean, he looks like he's about to cry! <><><><>
Like he and Utena, as well as he and Akio, Mikage shares many aspects of his past form, Nemuro with his present self. Primarilly, they are both treated as "spare parts" so-to-speak. Nemuro was handled this way by his students to obtain success in their eternity project, but what they did now know is that Nemuro could hardly care less about his duties, for it was only that, a duty. He only worked half way, simply for business reasons and felt overworked, controlled by his contract. Then, Akio sent Tokiko, the one person who could breathe life into an emotionless body. It was pretty obvious that Akio actually sent her, with full knowledge of what she and her brother would do for him; what doors he, the genius Nemuro, would open for Akio. Akio was then presumably the board of directors, the "you-know-who" the boys working on the eternity project whispered of behind Nemuro's back. The one statement that proves his sending of Tokiko was, after a comment made about how Nemuro worked with her, one boy says, "whatever you-know-who does is never in vain." Once Tokiko was sent to her duties, Nemuro continued to be treated as a computer by his coworkers, a selfless machine that acts purely for its yielder, but he also emotionally involved, using the project to attempt to restore Tokiko's beloved brother, Mamiya's health and hopefully for him, develop a relationship with Tokiko herself and become a part of the only family he has presumably ever known. Mikage is this way as well.

Mikage is supposedly a completely warped version of his past, but the pure human spirit Nemuro possessed is always there within him. His intense emotional bond guides him to his (present, but illusory) lover, Mamiya. (Note how only Mamiya's status and personality has truly changed.) However, Mikage continues to be considered only as a spare part, a side project, an unnecessary piece of Akio's great plan. Whether Mikage realizes it or not, he is the same man he has always been, but used under different circumstances.

The one prominent difference between the two personalities is their understanding of friendships and relationships in general. The early, "computer-like" Nemuro knew practically nothing of this behavior until he became fully involved with Tokiko and Mamiya. Before that, and even somewhat during his escapade as Mikage, he was hesitant and quite irritable when handling unimportant components like small talk. An example of this is his small conversation about snow a student of his had presented him with. He completely verifies the statement's insignificance and easily avoids the comment, calmly walking away. In a later conversation with Tokiko, he is even hesitant to make a personal comment to her when describing the Eternity project. Being logical as he is, the action of dismissing small talk is understandable. The later Nemuro and Mikage differ from this character, finding simple conversation less disrupting, more easily engaging, but a degree irritating nonetheless. The way he acts upon these quiet exchanges is the main dividing point between the two personalities.

The major turning point in Nemuro's life is when he witnessed Tokiko's tears, the quiet leaking of emotion toward her brother. When he first arrived at their home, he was a bit mystified as to why anyone would invite him into their home for personal reasons. By the end of his visit, as well as his first encounter with Mamiya, it became clear to Nemuro that he was a changed man. He had finally found the emotion, what truly makes a man, (or any human, for that matter) inside of himself.

Tokiko:
"Is there someone important in your life? Or perhaps these people known as geniuses never fall in love with other people?"
Nemuro:
"So it would seem. That is, until today"


What Akio did at this point destroyed all that Nemuro was toiling for, what he had lived for. He made absolutely sure to send Tokiko precisely when Nemuro would be ripe a rapid change from machine to man (namely, Anthropomorphism) and his plan had succeeded thus far. Nemuro had found a reason to live. After he had become passionate, when it was time to succeed in his eternity project, Akio approached Nemuro with his plan, knowing well that he would decline at first. Then, he arranged it so the love Nemuro had recently found would be demolished, not only murdering what he had built inside, but allowing him to execute Akio's insane plan of burning Nemuro Memorial Hall, 100 boys along with it.

Even decades after Nemuro Memorial had been burned to the ground, Akio continued to mockingly treat Mikage as a pawn, even if the only reason he executed Akio's plan was to prove himself as crucial to something. Akio even seemed to take a sort of sick pleasure in knowing he had control. Though events had caused Nemuro to mutate into Mikage, he was the same man he had been, but regressed into this form by Ohtori's promenant "string-pulling bastard from the shadows."

Mikage seemed to give mercy to all of those who had reminded him of his past. Particularly, he must have identified with Kazami Tatsuya. The way the two characters had both been madly in love, yet unable to attain mutual romance was reminiscent of what had happened to Nemuro. Mikage was dreadfully cold when handling Tatsuya, but his memories had not resurfaced to the point where he could show much emotion. Tatsuya's actions, on the other hand, were a mirror to Mikage's during his duel. The love he feels so extremely for Tokiko burst out in a melancholy, yet frustrated, series of screams. During Tatsuya's "interview," Mikage even showed reluctance for what he had become.

Mikage:
"This isn't a place for someone like you"

This statement reveals that Tatsuya, frighteningly similar to Nemuro, should not have been caught into any madness and violence, such as the Mikage Seminar and Black Rose dueling. Mikage becomes disinclined to be completely similar to Akio, allowing an innocent into the products of his dark psyche. This is a strange, yet clever view of the future of the Kurobara arc, or more correctly, the past of Mikage.