Queen Yoo, also known as Dowager Empress Yoo, is the third queen of King Taejo and the mother of Wang Yo, Wang So, and Wang Jung in “Moon Lovers: Scarlet Heart Ryeo.” Her primary goal is to see her son, Wang Yo, ascend to the throne, which drives much of her actions and decisions throughout the series. She is highly ambitious and does not shy away from using harsh methods to secure her position and power. Despite her ruthless exterior, she is fiercely protective of her children, particularly Wang Yo. Queen Yoo is skilled in manipulation, often orchestrating events behind the scenes to ensure outcomes that favor her ambitions. Her character is complex, showing moments of vulnerability and depth, especially in her interactions with her sons. Her relationship with Wang So, in particular, reveals a more nuanced side to her personality. Queen Yoo’s character adds significant depth and intrigue to the storyline, making her one of the memorable figures in the series.