Wang Soo es heredero del Emperador. Él no quiere estar en el centro de atención, pero nace de forma natural en la realeza. Su personalidad es tan fría como el hielo. Hae Soo, quien se encuentra en el tiempo actual, debido a un accidente inesperado termina viajando de regreso a la época histórica. Hae Soo se las arregla para sobrevivir en ese tiempo sin embargo debido a su personalidad y diversas situaciones terminará involucrada con los diferentes príncipes. Tras la muerte del Emperador comienza una guerra por el trono.
Cast completo de Scarlet Heart: Ryeo
IU
Go Hajin / Lady Hae Soo (20 episodes)
IU delivered a captivating performance as Go Ha-jin, a 21st-century woman who travels back in time to the Goryeo dynasty and assumes the identity of Lady Hae Soo in the South Korean television drama "Scarlet Heart: Ryeo." Her portrayal was a blend of modern sensibilities and historical grace, as she navigated the complexities of palace intrigue and forbidden love. IU's acting was nuanced and emotionally resonant, effectively conveying the character's initial confusion, her resilience in adapting to her new surroundings, and the depth of her feelings for the princes, particularly the tortured Wang So, played by Lee Joon-gi. Her chemistry with the cast was palpable, and her performance was marked by a genuine vulnerability that endeared her to audiences. IU's transition from a carefree contemporary woman to a dignified historical figure demonstrated her range as an actress and solidified her status as a versatile talent in the Korean entertainment industry. Her portrayal of Go Ha-jin/Lady Hae Soo was pivotal in bringing to life the story's emotional stakes and the heart-wrenching choices her character faced, making her a standout in a drama filled with strong performances.