Kotoko Aihara is a fictional character from the Japanese manga and anime series Itazura na Kiss, created by Kaoru Tada. She is portrayed as a cheerful and determined high school girl who has a crush on her classmate, Naoki Irie. Throughout the series, Kotoko's clumsy and naive nature often leads to humorous situations. Despite facing various challenges in her romantic pursuits, her resilience and unwavering affection for Naoki drive the story forward, showcasing themes of love and perseverance.