Oh So-Nyeo, portrayed by Lee Sung Kyung in "It's Okay, That's Love," is a cheerful and optimistic barista in her mid-20s. She is kind-hearted, supportive, and always willing to help her friends. Despite facing her own challenges, she maintains a positive outlook on life. Oh So-Nyeo is known for her warm and approachable nature, making her a beloved character in the series. A troubled girl with behavioral problems who was expelled from high school and was also abandoned by her mother. So-nyeo works at a cafe alongside Soo-kwang; she takes advantage of his feelings for her and uses him to give her money and buy her things, even though he knows she's seeing someone else. So-nyeo eventually falls for Soo-kwang and begins dating him exclusively, then decides she wants to become a psychiatrist like Hae-soo.