Mordred is a legendary knight from Arthurian legend, known as the illegitimate child of King Arthur. As a Servant in Fate/Grand Order, she can be summoned in her Rider-class form, which includes a swimsuit variant. In this form, she maintains her characteristic pride and combative nature while taking on the Rider class abilities. Mordred is known for her rebellious personality and her complex relationship with her father Arthur. She is a skilled warrior who wields powerful combat abilities and is often depicted as confident and competitive. Her swimsuit Rider form represents an alternate version of the character, blending her legendary warrior status with a more casual summer aesthetic while retaining her core personality traits.