Jiyoung: She is the only child of the Kang family. She’s learned that at a young age, she had to provide for herself as her parents were always busy with their business. She lives in a dorm alone. To make money, she is paid to ruin couples by jealous people. She doesn’t believe in love and is only out to live for herself.

Dongwoon: A college student that girls swoon over. He lives in a dorm with his brother. He swore that he would treat every girl with respect and treat his girlfriend right with love and care because of his late girlfriend, Eunji. Because he didn’t love her enough, when she was bedridden, he realized his wrongdoings.

Sehun: Jiyoung’s best friend from high school. He covers up for her to get her out of trouble. He doesn’t know he’s in love with her. He comes from a humble family and is the only son. Although he may appear cold and hard to approach, he is soft on the inside.  Even iif he is her best friend, he doesn’t know what Jiyoung does to get money.

Suzy: Dongwoon’s girlfriend. A kind-hearted person that only loved at the wrong moment. Because her status is of the upper class, she has her own house right next to her college.

Yoseob: Dongwoon’s older brother. He is cute and bubbly and is usually mistaken as the younger brother. Since he grew up without a mother, it was always fun and games with him. He always got what he wanted.

Jessica: She paid Jiyoung to wreck Dongwoon’s love live just so she could at least have a chance to be with him. She and her sister, Krystal, were thrown into an orphanage at a young age because their parents died in a car accident. She believes that having a chance at love would help her have hope for humanity.

Krystal: Jessica's sister. She's confused at why her sister is obsess with wrecking a guy's love life and is stressed over it. Hardworking.

Minah: A close friend to Jessica. She follows her and loves her like an older sister because she never experienced such closeness to anyone before. She's jealous of Jessica's younger sister, Krystal.

Chanyeol: A childhood friend to the Jung sisters. They met at the orphanage but was adopted and left to Taiwan.