Kotoko Aihara

Kotoko in love with the handsome and intelligent Naoki. After her newly constructed house collapsed, she moved into the Irie household as her father is a very close friend of Naoki's father, Shigeki Irie. Kotoko is a cute and adorable slim girl with long red-brown hair with bangs, big warm brown eyes, a cute upturned nose and a smile on her face. Throughout the series, she has many different outfits and hairstyles, but usually either leaves her hair down, or has it in pigtails or braids. When she wears her nurse uniform, she normally has it in pigtails to keep it short and out of the way of her work. Kotoko is an absent-minded, cheerful, romantic and emotional girl who is rather clumsy but she is very determined and driven. Even though she has a lot of spunk and can be very feisty, she is a little stupid but can be very lovable. She shows her emotional side whenever she would see Naoki Irie with another girl, like Christine Robbins, but this just displays her love for him. Kotoko is regarded as being stupid and known for messing things up. She is also a comedic character from what Naoki had said. She is continuously described as quite dense in matters associated with love, but is very persistent and works hard for things she wants. Kotoko has lived with her father ever since her mother died when she was at a very young age. After she enrolled into Tonan High School, she was placed into Class F (classes are arranged by letter) along with her friends Jinko Komori, Satomi Ishikawa and Kinnosuke Ikezawa, also known as "Kin-chan". During the freshman speech on the first day of school, she overheard some girls talking about Naoki Irie, who was to deliver the speech. Hearing that he was possibly the number one genius in Japan, Kotoko imagined a studious person. However, when Naoki Irie appeared and began speaking, she was surprised at how different he looked and instantly fell in love with him.