Natsuru Senō

Natsuru Senō [(瀬能 ナツル,, Senō Natsuru] The series' main protagonist. Second year student of Seitetsu Gakuin High School, he has a crush on Kaede Sakura, one of the school beauties, to the point of single-mindedness and sees other girls with indifference. He is chosen as a Blue Kämpfer by Moderator and setup as a Zauber type with power based on fire. In keeping with the rule that all Kämpfers are females, he turns into a girl upon transformation. Natsuru was given a stuff animal called a Messenger by Sakura. This stuff animal is named Harakiri Tora,, meaning Disembowled Tiger. He basically tells Natsuru that he is now a Kampfer, and and has to fight other Kampfers that have different color bracelets. When Natsuru asked him why Kampfers had to fight Harakiri Tora says he doesn't know. But in manga chapter 22, he learns from Mikoto that her Messenger said she was saving the world from something, but she doesn't know what.

Natsuru's meets his teammate Akane Mishima when she tries to kill him on the way to school. He manages to get away from her, but Akane comes looking for him in her normal form. She came to explain that when she transforms her personality changes, and they were on the same side and was sorry to have attacked him. In the manga once Natsuru and Akane became friends, he asked her to come shopping with him to find some female chothes to wear for when he transforms. Akane agreed to come with him, but later, Natsuru and Akane meet Shizuku Sango, a fellow student of Seitetsu Gakuin High School, at a restaurant. She claims to have kidnapped Kaede Sakura and says she won't release her unless Natsuru and Akane fight her. They agree to fight Shizuku in two nights at the school and won against Shizuku. Shizuku made a truce with Natsuru to leave Sakura alone from now on.

After a fight with Shizuku exposed his Kämpfer form to other students of the school, Shizuku arranged to have him enrolled in girl's class to fulfill public curiosity in a way that diverts attentions away from Kämpfer battle. His Kämpfer form has subsequently been ranked among the Three Beauties of Seitetsu (there used to be only two) and, much to his own dismay, become subject of intense affections from Kaede Sakura (who has displayed no particular interest in his Normal form) and the female student body.