The premiere episode establishes the stark contrast between the leads' lives.
: Advanced Audio Coding, a standard compressed audio format. The premiere episode establishes the stark contrast between
(played by Jeon Do-yeon): A retired national athlete who now runs a popular side-dish store. She is high-spirited and dedicated to her niece (whom she raises as her daughter), eventually entering the competitive private education scene to help her get into a top academy. The premiere episode establishes the stark contrast between
The series follows the unlikely relationship between a former national handball athlete and a superstar math instructor in the high-stakes world of South Korean private education. The premiere episode establishes the stark contrast between