Do Kyungsoo and Song Mi Ae are couples.

Park Chanyeol, 22 year old young adult who's living on his own in an apartment not to far from his college. He may seem to be a happy virus and all, but that's just a mask he puts on a show. Chanyeol continues to live in the past, not wanting to let go of his beloved partner.

Amy, a 20 years old girl who has been living in Seoul Hospital all her life. She was diagnosed with brain cancer. The doctors had told her that she only had two months left to live. Her family and friends were shocked when they heard the news but Amy didn't want them to be sad, but she knew that there was nothing she could do. Everyday, laying on her bed in her room in the hospital, she was

Bang Yongguk, 18 years old and is a popular 3rd year student with his three best friends. Yongguk loves to rap freestyle and he loves to do it with his friends. His three friends are Pyo Jihoon who is in 2nd grade, Woo Jiho who's in the same year as Yongguk and Park Chanyeol who is in his music class. Yongguk is drawn towards a certain freshman girl, not because of her looks but as well as h

Zhang YiXing, a 19 year old freshmen in Seoul University. Yi Xing, or Lay as he likes to be called, has someone he loves. Kim Haera, a 18 year old girl who skipped high school and is also a freshmen in Seoul University.

Phantom Shadows, South Korea's number 1 feared, strongest and most respected gang existing. They are a gang consisting of both girls and boys, a total of 6 members. Due to a request, they were transfered to YG High. YG High, a school that is known for its status