Following the conclusion of the MBC drama '21st Century Grand Princess' on the 16th, lead actors IU and Byun Woo-seok faced significant backlash regarding historical inaccuracies depicted in the series. On April 18, both actors took to their respective social media accounts to issue formal apologies, acknowledging a lack of careful consideration regarding the historical context of the production. While the drama was highly anticipated and achieved strong viewership ratings, the controversy expanded to include the director, Park Joon-hwa, and the original author, both of whom have since publicly apologized for the lack of proper historical research and verification. | Following the conclusion of the MBC drama '21st Century Grand Princess' on the 16th, lead actors IU and Byun Woo-seok faced significant backlash regarding historical inaccuracies depicted in the series. On April 18, both actors took to their respective social media accounts to issue formal apologies, acknowledging a lack of careful consideration regarding the historical context of the production. While the drama was highly anticipated and achieved strong viewership ratings, the controversy expanded to include the director, Park Joon-hwa, and the original author, both of whom have since publicly apologized for the lack of proper historical research and verification.