Mariko, whose full name is Mariko Ikezawa, is a 21-year-old woman from Yokohama who appears as a recurring customer at Taisho's ramen shop in the anime Neko Rahmen. She works as a secretary and is multilingual, speaking both English and French. Her hobbies include horseback riding and polo, and she owns a miniature dachshund named Mry-chan. Mariko has a cheerful and friendly personality, often initiating conversations with Taisho and the other customers. She is generally positive and encouraging, but can also be assertive when the situation calls for it. Her deep affection for animals is a defining trait, and she frequently brings her pet to the shop. In the story, she serves as a supporting character whose interactions add humor and warmth to the daily life of the ramen establishment. While she does not undergo significant personal development, her consistent presence reinforces the slice-of-life atmosphere and highlights the community that gathers around Taisho's shop.