OVA
Description
Kana Kojima is a 23-year-old Japanese language teacher at Kawanuma West High School. She is well-known among the student body for her fiery temper and strict, no-nonsense attitude in the classroom, which have earned her the fearsome nickname Kojima the Demon. According to the school newspaper, she is often voted the scariest teacher. This imposing reputation is further supported by her surprising physical strength; she has been known to single-handedly defeat delinquent students from other schools when they have troubled her own pupils.

Despite her intimidating public persona, Kana’s true personality is quite the opposite. In private, she is shy, introverted, and remarkably clumsy, frequently finding herself in embarrassing and precarious situations. This gap between her strict facade and her bashful, awkward interior is a defining trait. She is easily flustered, especially in romantic or compromising circumstances, and blushes profusely. Adding to her clumsy nature, she has a very low tolerance for alcohol, becoming completely drunk from even a single drop. She also harbors a fear of thunderstorms, to the point of clinging to others for comfort.

Kana’s motivation to become a teacher stems from a formative encounter during her own high school years. At that time, she was a timid, bespectacled girl who was unsure of her future path. After saving a young boy who had jumped into a river, she was inspired by his words and actions, which gave her the courage to pursue a more assertive and confident path, ultimately leading her to the teaching profession. She later discovers that this boy was none other than Ichiro Sato, the student with whom she keeps getting entangled, a fact that strengthens their bond.

Her central role in the story revolves around her secret relationship with her student, Ichiro Sato. Despite her position as his teacher, the two begin dating in secret to hide their forbidden love. Their relationship is defined by a series of comedic and accidental erotic encounters in various locations around the school, such as restrooms, the nurse's office, and the bathhouse. After Ichiro graduates, Kana happily assumes the role of his fiancée, often spending her time in his apartment, cooking for him and acting as a domestic partner. They eventually begin living together.

Beyond her relationship with Ichiro, Kana has several key relationships. She is longtime friends with Saki Sato, Ichiro’s mother, who is highly supportive of her son’s relationship with Kana and often schemes to bring them closer together. She is also close with Mayu Matsukaze, the art teacher at the school, who is her best friend from their own student days. Despite her fearsome reputation, Kana secretly wishes to be more popular with her students and even reads books on how to earn their affection, demonstrating her underlying insecurity and desire for connection.

In terms of development, Kana evolves from a shy high school girl into a strict and confident teacher, though she retains her clumsy and bashful core. Her relationship with Ichiro progresses from a secret, forbidden affair to a public and accepted engagement, culminating in them living together as a couple. She demonstrates a deep commitment to Ichiro, and her past connection with him serves as the emotional foundation for their present relationship.

Aside from her teaching skills and unexpected combat prowess, Kana is noted for being an excellent cook, a skill she frequently puts to use in caring for Ichiro. She is also prone to accidents and is notably naive about certain aspects of life, such as having inaccurate ideas about sex education. Her physical appearance is characterized by her grayish-brown hair, typically tied up in a bun, and her unusually large bust.
Cast