Harunobu Madarame is a central character in the anime and manga series Genshiken. Known for his deep passion for otaku culture, he is a dedicated member of the Genshiken club, which celebrates and explores various aspects of geek culture. Madarame is characterized by his shy demeanor, yet he is highly knowledgeable about anime, manga, and video games. Throughout the series, he undergoes significant personal growth, particularly in overcoming his social awkwardness and developing friendships within the club. His role often brings humor and relatability to the storyline.