The character named Hajime-chan's childhood friend and neighbor is Miyuki. People often wonder why such an excellent student like her would be friends with a lazy person like him. However, it seems that deep down, Miyuki believes that Hajime isn't stupid and they share an unspoken love. Her birthday is November 24 as stated in "The Murderer From the Screen." In the live-action series, she demonstrated exceptional logic and perception when filling in for him to solve a murder mystery while he was hospitalized with appendicitis. Although her abilities are not as impressive as his, she proved herself capable of solving complex problems.