Karen Onodera is a supporting character in the anime series Onegai ☆ Teacher. She is a charming and energetic young girl, known for her outgoing personality and inquisitive nature. Karen often provides comic relief with her playful antics and lively spirit. As a student, she is determined and hardworking, always striving to do her best. In the series, her interactions with the main characters add depth to the storyline, showcasing her ability to make friends easily and her endearing qualities. Her presence contributes significantly to the light-hearted and humorous tone of the show.