Doona!, starring Bae Suzy and Yang Se-jong.Doona! will star Bae Suzy as the titular Doona, a former K-pop idol who has since left behind her glamorous celebrity life and retired from the entertainment industry. Meanwhile, Yang Se-jong will play college student Lee Won-jun, who ends up living with and falling in love with Doona.The clip opens with Lee Won-jun ask what Doona was like when she was an idol, followed by the college student diving into the world of K-pop and learning more about his new roommate.“Hello.