This is a Korean series which aired in 2009. It centers around the life of a hardworking girl and four wealthy young men who were known as F4. Gu Jun-pyo the leader of the gang falls in love with the hardworking girl Geum Jan-di after the daring challenges he put her through in order to show is superiority in wealth and power. Jan-di stood her ground for most of them, as the series unfolds, we see Jan-di falls for another member of the F4 Yoon Ji-hu who played the role of the cool headed and gentle one among the group.
This caused a friction between the friends. This series is a must watch for viewers who are interested in love related stories as well as music and high school relationship related drama. Each episode ends with a twist that makes the next episode even worth more.