"Why is my life so messed up?!" Haeun has a stepbrother who is a gang leader, and she gets blamed for everything he does. When her brother causes her to be late for class, she has a strange encounter—the one that makes her a housemaid for the rest of the year. Haeun, who hasn't even had her first kiss yet, decides to take revenge. But when she finally kisses someone—and it isn't pleasant—what will happen?