When a couple fight too much but they are not breaking up, that means they are really in-love with each other :">

* CHO KYUHYUN

-Sungmin's Boyfriend

-Rich

-smart

-handsome

-President of Math Club

* Lee Sungmin

-Kyuhyun's Girlfriend

-rich

-smart

-Gorgeous/Beautiful

-y

-President of Martial arts Club

* Lee Hyukjae a.k.a Eunhyuk

-Donghae's Boyfriend

-rich

-cool

-hot

-smart

-President of dance club

* Lee Donghae

-Eunhyuk's Girlfriend

-rich

-smart

-pretty

-y

-President of Swimming club

** No one in their school knows that they have a relationship with each other. They want to hide their relationship in public. only their family knows the truth.