A story of a girl who struggled for love and acceptance, until she meets this guy who gives her all that she ever wanted-- And more.

X1 consists of 5 members from the 20th century and 6 from the 21st. Those 6 are bound to get in trouble from time to time. Their hyungs are used to it by now. 

Han Nari decided to run away back to her home of Korea after experiencing heartbreak in America. She joined her older brother, Seungwoo, and his friends as a first year university student and decided that it would be the fresh start that she needed. However, along the way she met Seungyoun who she remembered from her childhood to be obnoxious and loud. Except, he was not so obnoxious and loud anymore and Nari found herself falling for the true bad boy on campus. Things got complicated because

Rion living up with her stepmom and stepsister while her father was out there busy working as truck driver. Both of them don't really like her because they are witches to begin with. Everything change when she has take a part time job with a chaebol family.