W is a prominent character in the mobile game and anime series Arknights. She is known as a mercenary and a former member of the Reunion Movement, an antagonistic faction within the series. W is infamous for her chaotic nature, cunning tactics, and her signature weaponry, including explosives. Despite her initial antagonistic role, she occasionally allies with the protagonist group, Rhodes Island, displaying complexity and depth in her character. Her unpredictable behavior and strategic mind make her a memorable and intriguing character in the series.