Aiko Senoo is one of the main characters in the anime series Ojamajo Doremi. She is a cheerful and energetic girl, originally from Osaka, who transfers to Misora Elementary School. Known for her Kansai dialect and tomboyish personality, Aiko quickly becomes friends with Doremi and the other witches. As one of the apprentice witches, she brings humor and warmth to the group, while also facing personal challenges, such as her parents' divorce. Aiko's optimism and kindness make her a beloved member of the cast.