IU revealed behind-the-scenes footage from the filming of MBC's new Friday-Saturday drama '21st Century Great Madam.'

On April 11, IU posted several photos on their social media with the caption "Seong Hee-joo makes a flashy entrance." In the photos, IU wore an all-red setup and posed in various ways on the set. Playing a chaebol character, they showed confidence in front of the camera, fully immersing themselves in the role.

Photos of IU in a school uniform were also released, showcasing their youthful appearance and versatile acting skills.

IU has been appearing as Seong Hee-joo in '21st Century Great Madam,' which premiered on the 10th. The drama is set in a 21st-century constitutional monarchy Korea and tells the story of a woman who has everything as a chaebol but is dissatisfied with her commoner status, and a man who is the king's son but has nothing, as they overcome the limits of their social status. Throughout the series, IU portrays Seong Hee-joo, a chaebol who never loses first place but faces the limitations of being a commoner and illegitimate child.