|Birthday||November 30, 1964 (Age 33)|
|Zodiac sig||Sagittarius Sun, Libra Moon|
|Voice actor||Midorikawa Hikaru|
Soji Mikage is the pink-haired head of the popular Mikage Seminar at Ohtori Academy and the principal antagonist of the Black Rose Arc.
Originally known as Professor Nemuro, he was considered a computer-like genius who did not experience human emotions. One day, he is introduced to Tokiko Chida whose principal project was to find a way to grant her fatally ill younger brother, Mamiya Chida, eternity. At this point, Nemuro first begins to notice relationships and actually desires them for himself. Nemuro develops feelings for Tokiko and Mamiya. He devotes himself to Tokiko's project, even though Mamiya himself clearly does not wish for an extended lifetime. At some point, the building where the project development took place was on fire. Mamiya was inititally thought to be the instigator of the incident, but it was really Nemuro who set it on fire.
Black Rose ArcEdit
Many years have passed ever since the research building was burned to the ground. In the present, that particular building is now rebuilt with 'Nemuro Memorial Hall' as its new name. Nemuro, not having aged for all these years, now renames himself as Soji Mikage. Soji has one purpose -- he attempts to turn Mamiya Chida into the Rose Bride as to ensure Mamiya's eternity in the Black Rose Arc. To do so, Soji lures students who experience deep feelings of jealousy and anxiety into his seminar and uses those emotions to turn them into Black Rose duelists that aim to kill the current Rose Bride, Anthy Himemiya. These particular duelists wear rings with a black rose.
Eventually, Soji is challenged by Utena to a duel after she finds out that he has been manipulating Otori's students to become Black Rose duelists. After a heated battle, Soji loses to Utena.
It is then revealed that Mamiya was already dead when Nemuro set the research building on fire, and that Soji hasn't aged for all these years due to the fact that he was living in his memories. Soji then realises that he is used as a puppet and remembers the true face of Mamiya. Akio’s final words after Soji lost the battle were that he used Soji and that he is now a graduate from Otori. Soji's whereabouts after his battle with Utena are unknown.
Duel Song: "Watashi Kuusou Seimeitai (I am an Imaginary Living Body)"
1.) Utena's biological father: There is a popular belief that Souji is Utena's biological father. Since Nemuro's storyline takes place approximately 15 years earlier, and since Tokiko Chida resembles Utena in many ways (being able to communicate with the shadow girls, sharing the same face shape, eye color and personality), many fans believe that Tokiko had conceived Utena at a certain point. It is heavily implied that Souji and Tokiko had shared an intimate relationship. However, as of yet, this had not been confirmed by Ikuhara himself. Also, this would mean that Souji had Utena at the age of 18.
2.) Utena's parallel: Utena and Souji have shared many parallels-both have been manipulated by older partners of the opposite gender (Utena was used by Akio, and Souji was used by Tokiko), and both have shown signs of interest/attachment in those of the same gender and age (Utena to Anthy and Souji to Mamiya, respectively).