"Koharu is a main character in the Japanese manga ""Hey, Prince!"" written by Aoi Hiroumi. She is a high school student who has a very sweet and friendly personality, making her well-liked by her peers. Koharu is also known for her great singing voice and her dream to become a professional singer.

One of Koharu's defining traits is her kindness and her willingness to help others. She is always ready to listen to her friends' problems and offer advice when needed. Her compassionate nature also extends to animals, as she has a pet cat whom she loves dearly.

Despite her seemingly perfect personality, Koharu also has her own share of struggles. She often feels like she is not good enough, harboring insecurities about her singing abilities and her place in the world. However, her determination to pursue her dreams keeps her pushing forward, even when faced with adversity.

Koharu's relationship with the male lead, Prince, is a central part of the manga's storyline. Prince is initially introduced as a cold and aloof character, but Koharu's warm and open personality slowly melts away his icy exterior. The two develop a close bond, and Koharu becomes an important source of support for Prince.

Throughout the manga, Koharu is faced with various challenges, including navigating her friendships, dealing with family issues, and pursuing her dream of becoming a singer. However, her unwavering kindness and determination make her a lovable and relatable character that readers can't help but root for.

Overall, Koharu is a well-developed character that embodies many positive traits, such as kindness, compassion, and perseverance. Her journey throughout the manga is one of growth and self-discovery, as she learns to overcome her insecurities and pursue her dreams with confidence."