Akihito Abikura is the male protagonist of the story and a second-year high school student. He is characterized by a desire for a peaceful school life and holds a philosophy that everything is best in moderation. Despite his quiet and modest nature, he possesses a strong sense of responsibility and a perceptive eye for the truth about others. His life takes an unexpected turn when he discovers the secret of his new homeroom teacher, Hiyori Hiwarimura. While the rest of the student body has come to fear her as the "Scary Teacher" who puts curses on students, Akihito observes her teaching a mock lesson to a stuffed animal in an empty classroom and realizes she is not frightening at all, but rather an extremely shy and misunderstood young woman. This realization motivates him to take action where others would not.

Akihito’s central motivation becomes helping his clumsy and anxious teacher overcome her timidity and clear up the misunderstandings surrounding her. As part of this commitment, he offers to become the class representative, positioning himself as a key supporter for Hiyori in her professional life. This role often leads him into a series of unexpected and sometimes awkward situations as he navigates the challenges of shielding his teacher from her own misfortunes and the suspicions of their peers. He develops a deep admiration for Hiyori’s dedication to her students and works diligently to bridge the gap between her true self and the frightening image the rest of the class has of her.

Regarding his key relationships, his life at home involves his older sister, Akemi Abikura, who works as a nurse and is notably very protective of him. At school, his primary relationship is with Hiyori Hiwarimura, whose secret he has vowed to help protect. He also has classmates such as Mizuki Mukubayashi, whom he has known since elementary school, though they are not initially close; she later becomes his co-class representative. In terms of his development, Akihito evolves from a passive student seeking a quiet life to an active and reliable figure who takes the initiative to support a struggling authority figure, demonstrating a maturity that goes beyond simply clearing up rumors. While he does not possess any supernatural or combat abilities, his notable strengths lie in his emotional intelligence, his practical sense of responsibility, and his willingness to act on behalf of someone he believes is deserving of a fair chance.