Ruriko Kohinata is a central character in the anime series Yuri Mate! She is a high school student known for her cheerful personality and strong sense of justice. Ruriko is passionate about helping others and often finds herself involved in the lives of her peers. Her role in the series involves being the supportive anchor for her friends, often bringing them together and resolving conflicts. With her optimistic outlook and empathetic nature, Ruriko plays a vital part in maintaining harmony within the group, making her an indispensable character in the storyline.