Jang Nara, Gong Hyo Jin, and Nam Sang Mi are leaving, and Sooyoung, Krystal, and Shin Se Kyung are coming. Girls' Generation Sooyoung and f(x) Krystal have to fight against the idol actress label, and Shin Se Kyung has to fight against a new image for her latest role.

The three actresses are the main characters of the new Wednesday and Thursday dramas.

Sooyoung is the main character of "The Spring of My Life." She will play a character who receives a heart transplant and falls in love with the man whose wife was the heart donor.

Kam Woo Sung plays the husband who lost his wife. They are 20 years apart in real life, and in the drama, they are 18 years apart in age. They will overcome the age difference and show a romance love line.

Sooyoung doesn't have a lot of experience as a main character, but since she was praised in her last drama, "Dating Agency: Cyrano," so her new role makes the anticipation of her viewers grow.

"My Lovely Girl" is about a celebrity agency and young prospective celebrities who work to follow their dreams as singers. Krystal is the main character, and she will have a love line with Rain, who is a songwriter who loses his skills after an accident.

This is Krystal's first role as the main character for a drama on a main broadcast station. She has also been praised for characters she's played in the past that fit have her personality well.

Shin Se Kyung was cast as the main character in "Iron Man."

It is a fantasy story about a man who grows swords on his body. Shin Se Kyung will play a role in which she tries to overcome his strangeness with love.

Her new character and disappointment from her last drama make the audience more curious of how she will perform in "Iron Man."