Unlike the other feudal lords who found themselves on the surface of the modern world, Shingen was transported to an unmanned Russian space station orbiting Earth. Thus, she must find a way to return to Earth's surface - where she can pursue her dream.
The class representative of sophomore Class B. He's known in the school for having a bad reputation, as seen when he tricked few students of class F to get the mock test paper. It has also been proven when he destroyed the resources of Class F just to gain advantage but even though Class F were at a disadvantage they still defeated him. He also took Himeji's love letter for Yoshii Akihisa (Yoshii thought it was for Yuuji). The reason why he was defeated was because Tsuchiya Kouta managed to bring Nishimura-sensei with him and defeated him after Yoshii distracted him. In order not to exchange rooms, he was asked to change into a girl's uniform and to go declare a mock-ESB on Class A. He had a girlfriend, the class representative of Class C, Koyama Yuuka. But after Yuuka saw him in a girl's uniform, she broke up with him.
Mikuriya is head of the research center where the Kirihara brothers were raised. Naoto holds strong resentment toward Mikuriya for taking Naoya and him from their parents and keeping them captive. However, the brothers maintain contact with Mikuriya following their escape, and come to his aid in episode 14. Mikuriya considers himself the guardian and protector of the brothers during their 15 years at the research center. Source: Wkipedia.