Kimura, also known as Mr. Kimura, is the only regular male character in the series. Kimura is a "creepy" and ephebophiliac Classical Japanese teacher, who openly admits he became a teacher to be close to high-school girls. He is constantly lewd and openly seeks excuses to "observe" girls, such as during swimming class or when they are measured and weighed by the school nurse. Most female students (and some faculty) intensely loathe him, but some male students admire his "sincerity". Despite his lewd activities, outside of school Kimura appears as a responsible and kind-hearted person. He has a beautiful wife and daughter, who love him despite his strange obsession; his wife even claims to find him very handsome and thinks "he's cool!"