Mary Saionji is a vibrant and energetic character from the anime series 'Virtual-san wa Miteiru'. As a virtual YouTuber, Mary is known for her cheerful personality and lively presence. Her role in the series is to entertain and engage with the audience through various skits and segments, along with her fellow virtual YouTuber friends. Mary's interactions often bring humor and lightheartedness, making her a beloved figure among fans of the show. Her dynamic presence is a key element in maintaining the series' upbeat and whimsical tone.