SEE ALSO: Actress Lee Young Ae reveals she goes to all the K-Pop idol concerts with her 15-year old daughter

The actress is reported to have been the source of the happy virus on set and joined the staff as a VJ, lightening the mood in her stylish office attire for her role as career woman So Mi Ra.

Lee Da Hee shared, "All of my co-stars and staff who I film with are already like a family, so I am filming comfortably. I want to meet the viewers soon. As I am having fun filming, please look forward to it."

She will be playing So Mi Ra, the daughter of a chaebol's chaffeur and the object of the chaebol Kang Dong Suk's (Choi Daniel) affection. To help him, she decides to plot with him against Kim Ji Hyuk (Kang Ji Hwan), whom she ends up pitying and loving as well.

'Big Man' portrays the story of an orphan who goes through a fight reminiscent of 'David and Goliath' as he tries to protect himself and his loved ones. Choi Daniel will play the role of two-faced�chaebol�Kang Dong Suk who looks like a friendly and witty gentleman on the surface, but gets involved in corrupt dealings and also gets into a love triangle with Kim Ji Hyuk .

'Big Man' will premiere on April 28 at 10 PM KST!