Seoul International Highschool, this is where popular and rich students go. Kwon Yuri a girl who ran away from her home to escape her problems, Unluckily she bumped onto Tiffany, a queenka, she was about to slap her but her boyfriend Jaejoong, a kingka, stopped her which causes them to break up. Starting that day Yuri's life became more miserable.

Kyuhyun and Jessica came back to Korea. Kyuhyun had an amnesia back in America he almost forgotten about everything! But what if he meets his lover and friends back then? Will he remember them?