Natsuru Senou

Original Name 瀬能 ナツル
Romaji Name Natsuru Senou
Nicknames None
Series Kämpfer
Age 17
Weight 58 kg
Height 177 cm
Date of Birth Unknown
Blood Type Unknown


Natsuru Senou, the main protagonist of the anime series “Kämpfer”, possesses a multifaceted personality that undergoes significant changes due to his unique circumstances. At first, Natsuru is portrayed as a typical high school student, with traits of kindness, friendliness, and a somewhat shy nature. He is known for his crush on Kaede Sakura, which adds an element of vulnerability to his character.
However, Natsuru’s personality undergoes a dramatic change when he is chosen as a Blue Fighter, a warrior imbued with special powers. As a result, he undergoes a physical transformation and becomes a girl whenever he activates his powers. This transformation has a profound effect on his self-image and leads to a struggle with his identity and gender.
Throughout the series, Natsuru shows determination, bravery, and a sense of responsibility as he fights other fighters. He becomes more assertive and confident in his abilities, adapting to the challenges he faces. Despite the complexities he encounters, Natsuru remains compassionate and caring towards his friends and allies.

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Natsuru Senou is a second-year student at Seitetsu Gakuin High School. His life takes an unexpected turn when he is chosen to become a Blue Warrior, a participant in a secret battle between warriors. In this battle, individuals transform into warriors with unique powers and engage in combat. Natsuru’s transformation into a female warrior and subsequent enrollment in the girls’ class adds another layer of complexity to his background.


In his normal form, Natsuru appears as an average-looking teenage boy with short brown hair and brown eyes. However, when he activates his powers as a Blue Fighter, he undergoes a complete physical transformation and becomes a girl. In this form, Natsuru has long, flowing hair and a more feminine appearance, often dressed in the fighter’s battle gear. His transformation into a girl becomes an important aspect of his character development and the central plot of the series.


As a Blue Warrior, Natsuru possesses unique abilities granted by the Moderator, the enigmatic being who oversees the battles. His powers are of the magic type, with an emphasis on fire-based abilities. Natsuru can generate and control fire, allowing him to use it both offensively and defensively during battles. His powers make him a formidable fighter, and he becomes increasingly skilled at using his abilities as the series progresses.


Natsuru Senou is from the anime and manga series “Kämpfer”. Created by Toshihiko Tsukiji, the series revolves around the secret battle between Kämpfers, individuals chosen to participate in a supernatural conflict. Natsuru’s character serves as the main protagonist, driving the narrative through his personal journey and the challenges he faces as a Kämpfer.
Throughout the series, Natsuru’s character undergoes significant development, exploring themes of identity, gender, and self-acceptance. His story provides a unique perspective on the struggles and growth of a character thrust into extraordinary circumstances.

Natsuru Senou – FAQ

Who is Natsuru Senou?

Natsuru Senou is the main protagonist of the anime and manga series “Kämpfer”. He is a high school student who unexpectedly becomes a “Kämpfer”, a fighter who can transform into a girl with enhanced abilities to participate in battles.

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How does Natsuru become a Kämpfer?

Natsuru becomes a Kämpfer when he receives a mysterious bracelet that transforms him into a girl. The bracelet activates whenever he is called upon to participate in battles against other fighters.

What are Natsuru’s abilities as a fighter?

As a fighter, Natsuru gains various abilities, including increased strength, agility, and combat skills. When transformed into a girl, he also has the ability to use various weapons and has enhanced sensory perception.

What is Natsuru’s personality like?

Natsuru is generally a kind and friendly person. He is well-liked by his classmates and often tries to maintain a positive attitude even in difficult situations. He can be somewhat naive and easily upset, especially when it comes to romantic matters.

Does Natsuru have a love interest?

Yes, Natsuru develops romantic feelings for a fellow student named Kaede Sakura. However, his situation as a martial artist complicates their relationship, leading to various romantic entanglements and misunderstandings throughout the series.

Are there any other notable characters related to Natsuru?

Yes, Natsuru is surrounded by a diverse cast of characters in the “Fighter” series. Some of the notable characters include Shizuku Sangou, a quiet and intelligent fighter who becomes Natsuru’s ally, and Akane Mishima, a tsundere character who also becomes a fighter and has a complicated relationship with Natsuru.

Will there be a second season of “Kämpfer”?

To the best of my knowledge, as of September 2021, there has not been a second season of the “Kämpfer” anime. The series originally aired in 2009 and consisted of 12 episodes. However, there are manga adaptations and light novels that continue the story beyond the events of the anime.