Two idols, SECRET's Sunhwa and Dal Shabet's Ahyoung, have been cast in an upcoming KBS drama 'Advertisement Genius Lee Tae Baek'.

Sunhwa will play the role of Lee Tae Baek's younger sister, Lee So Ran, who is a narrator model who dreams of becoming an actress.

Sunhwa shared, "Although I am nervous and excited because it is my first time acting, I will do my best to learn, feel, and work hard on set. The character of 'Lee So Ran' is very similar to my real personality, so I already feel close [to the character] and am excited. I work hard so that I will be able to receive compliments that Sunhwa has potential in acting."

Meanwhile, Ahyoung will play the part of Gon Sung Hye, a junior that is majoring in design. She plays the secretary of the owner of an advertisement company, GRC.

Ahyoung's character is a slightly 4D girl who always uses internet phrases such as 'hul', and has her own unique sense of fashion and hairstyle.

Ahyoung said, "It's my first time acting in a real drama, so I'm worried. But I'm working hard to learn with my sunbaenim's help. I'm looking forward to showing off new sides of me that I haven't been able to show my fans. Please show me a lot of support."

'Advertisement Genius Lee Tae Baek' will air after 'School 2013'.