Murasame Reine

Reine is highly intelligent and the Analysis Officer of Ratatosk's Fraxinus Crew.

She can be ranked the Vice-Commander of the crew rather than Kannazuki Kyouhei, as it is usually her at Kotori's side, managing things around the crew. She transferred to Raizen Highschool as a Physics teacher and an assistant homeroom teacher at Shidou's class. She has big eyebags which are a result of her not having had enough sleep. In fact, Reine stated at one point that "for the last 30 years, she hasn't been able to sleep properly."

At some points, she can be reliable and take Command of the directions which Shidou needs to do when dating a spirit. She acts like the "mother" of Shidou and the other Spirits to help them with their troubles and such.

Reine has a habit of calling Shido "Shin", because she can never pronounce his name right.