Geumjidoen Kiss

Synopsis

"Why is my life so messed up?!" Ha-Eun has a step brother who's a gang leader and she gets blamed for everything he does. When her brother makes it so that she is late for class, she has a strange encounter- the encounter that makes her a housemaid for the rest of the year. Ha-Eun, 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? (Source: Anilist)