Oh Hana is 17 years old girl with a normal high school student life. She has an  18 years old brother, Oh Heejun, that goes to the same school as she is. Both of them are orphans; their parents died in a car crash 10 years ago. Ever since that day, they lived with their aunt, but decided to move out and live in an apartment using our parents'  insurance money after both of them got into high school.

At school, Hana has a best friend named Park Soojin. They had been friends ever since middle school and still keep it that away until now. Together, both of them make a great combo as they walked through.

Hana hadn't fall in love before or even had her first kiss. So apart from the itchy feelings she got from watching the kdramas before, she knows nothing about love. But, on the second year of high school, she discovered something more about it... with someone she least expected it to be.

Apparently, fate has its own ways.