Yeongi is the top student in her grade. But her kind and responsible exterior masks problems at home. Her dad is gone, her mom is gravely ill, and she has to live with her new caretaker, the imposing Chairman. Now she has to keep an eye on his troublemaker son, Pyeong. When the Chairman promises Yeongi hell grant her one wish if shes elected school president, Yeongi works hard to balance school life, dealing with bullies, and a potential romance while trying to figure Pyeong out.