SEE ALSO: 'Big Man' releases two posters and teasers ahead of premiere later this month

Choi Daniel and Jung So Min, who play chaebol siblings on upcoming KBS 2TV drama 'Big Man', donned a '60s mod look with their voluminous hairstyles and classic dress attire with Jung So Min rocking Mary Jane shoes paired with funky knee-high stockings to give that vintage appeal. It has been revealed that the two co-stars were busy talking to each other while getting their makeup done, showing how much they've gotten close while filming their drama.

Choi Daniel complimented his partner in crime Jung So Min, "She is very calm and composed for her age and is a friend with deep thoughts." Jung So Min also had good words to say about Choi Daniel, sharing, "He has the ability of making those around him feel comfortable."

'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. It will premiere on April 28 at 10 PM KST!