TV-Series
Description
Hiroki Kamijō is one of the primary characters in the series, known for his complicated personality and his central role in the Junjou Egoist story arc. He is an associate professor of classical Japanese literature at Mitsuhashi University, having graduated at the top of his class. His deep passion for his academic field is matched only by his notoriously strict teaching methods, which have earned him the fearful nickname Demon Kamijō among his students. He is known to throw erasers or books at anyone not paying attention and has a reputation for being uncompromising about class attendance and participation.

Physically, Hiroki is of medium height, with a slim build, honey-colored eyes, and light brown hair. He was born on either May 12 or November 22, depending on the source, and his age in the story progresses from his early twenties to around twenty-nine.

At his core, Hiroki is a classic example of a tsundere character. He has a famously short temper and often reacts to embarrassing or stressful situations with anger and violence, a behavior he uses as a defense mechanism to hide his true, more sensitive nature. Despite his prickly exterior, he is actually shy, emotionally vulnerable, and prone to overthinking situations, often imagining the worst-case scenarios. He possesses a strong sense of pride and a deep-seated hatred of losing, a trait that has followed him since childhood. This pride was evident when he was young; despite complaining about a packed daily schedule of cram school, swimming, piano, kendo, and calligraphy, he refused to quit any activity because he considered it a personal failure.

Hiroki's background is heavily influenced by his relationship with his childhood friend, the famous novelist Akihiko Usami. They met when Hiroki, as a stressed young boy, ran into a forest that he later discovered was part of the Usami estate. Over the years, Hiroki developed an unrequited, painful love for Akihiko, who was in love with someone else, Misaki's older brother Takahiro. In a moment of deep despair and misguided hope, Hiroki used Akihiko's vulnerability to sleep with him, an experience that ended in mutual hurt and regret. This event left him heartbroken, and the story's present timeline begins with him crying alone on a park bench.

His life changes dramatically when a toy rocket nearly hits him in the park. The rocket's owner, a tall and kind-hearted orphan named Nowaki Kusama, sees him crying and is immediately captivated. Nowaki asks Hiroki to be his tutor so he can pass the high school proficiency exam and attend university. Despite Hiroki’s initial resistance and violent outbursts, Nowaki’s persistence and directness break through his defenses. Hiroki’s primary motivation in the story becomes navigating this new, unfamiliar relationship. Having spent years longing for an unattainable love, he is insecure and confused about how to accept genuine affection. He constantly questions Nowaki’s actions and his own feelings, struggling to lower the emotional walls he has built.

His key relationship is, of course, with Nowaki Kusama. Their bond starts as a tutor-student arrangement but quickly deepens. A significant point of development for Hiroki is learning to be vulnerable. For a long time, he refused to let anyone but his family and Akihiko call him by his first name. After a fight with Nowaki, he reveals there is one special nickname, Hiro-san, that only Nowaki is allowed to use. This concession represents a major step in him accepting Nowaki as a unique and irreplaceable part of his life. Another major challenge in their relationship occurs when Nowaki leaves for a year to study medicine abroad. Hiroki feels abandoned and angry, only to later recall that he had, in fact, agreed to the plan and simply forgotten, which is a testament to his sometimes-absentminded nature. His jealousy is another recurring trait, often flaring up regarding Nowaki’s friendly senior colleague at the hospital.

Throughout the story, Hiroki shows notable development. He gradually learns to accept that he is loved, moving away from the painful certainty of his one-sided love for Akihiko. His pride softens as he admits that being the most important person to Nowaki is what truly makes him happy. While he remains easily flustered and temperamental, he demonstrates a deep, quiet loyalty. He also shows maturity in his friendship with Akihiko, ultimately expressing happiness that his old friend has found a loving relationship of his own. As an associate professor with a rigorous academic background, his notable abilities include deep expertise in classical literature and a strict, disciplined approach to education, even if his methods are harsh.