Lee Hi loves singing and making music, but she hates promoting. She loathes going on music shows, she detests having to be funny and interesting in variety shows, and she despises talking on radio shows. Why couldn't she just release her music for people to enjoy and leave it at that? Why does she have to fake it and try to be likable for people to listen to her music?

Lee Hayi is an introverted 19-year-old journalism student in Seoul National University. She is currently an intern journalist at South Korea's #1 daily newspaper, Seoul Post. Her life changes drastically when she discovers a scheme by President Lee Byunghun, implementing Kim Hanbin's father Mayor Kim Jungjoo.

YG Family is a huge company, with talented (and very attractive) young singers and dancers. There's the legendary big brothers Big Bang, the charming Winner, the boyish iKON, the elegant Blackpink, the soulful Lee Hayi, and cute siblings AKMU. Let's be honest, there must be some sparks flying between these young artists at one point, right?

Kim Hanbin, a music major student in Seoul National University, and Lee Hayi, a street musician who waitresses in her spare time, are two lost and lonely souls who cross paths and find themselves in each other. The tragic death of Hanbin’s brother Jiyong and the passing away of Hayi’s parents have left them lonely and broken. Music brings them together, healing their lonely hearts.

Monster rookie Lee Hayi is struggling to compose songs of her own, as Yang sajangnim had asked her to. She hasn't had significant relationships or a roller coaster of great struggles which could inspire to write meaningful songs. Hayi has avoided complicated situations with boys because she thought it to be "unnecessary". However, her thoughts on love and life changed when she met trainee Kim Hanbin. Can she avoid a complicated situation with Kim Hanbin like she always did with other boys?