What's with Money!?

Geum Hye Ra (played by Chanmi) is the student council president and spends money like water, acting tough and cold to hide a hole in her heart. Choi Geum Son (played by Hakyeon) comes from a poor background but works to overcome it through his financial knowledge and his energetic personality, while Jin Si Hwan (played by Hongbin) is the troublemaker son of a wealthy family.