Kwon Yong Mi, a girl who has a crush on Minjun.

She hides a big secret from everyone except someone and Junho happens to discover her secret.

Who is that someone and what is her big secret?

Kim Minjun, a troublemaker but a very loyal boyfriend to Gong Minye.

Rich but failing almost all subjects.

50% of girls in school have a crush on him.

Lee Chae Mi, the one and only pretty girl who makes Minjun takes his second glance at her.

Happens to be Taecyeon’s closest cousin.

Classy and elegant.

A daughter of Lee Da Gun, one of the most successful businessman in South Korea.

Ok Taecyeon, a caring cousin to Chae Mi.

Rich, friendly, smart and secretive.

In genius class with Junho the genius handsome boy.

Never takes his relationship with any girl seriously.

Lee Junho, a rich flower boy next door.

Annoying and does not really know how to keep secrets.

Always give feedback to his secret admirers but still loyal to his girlfriend, So Eun.

Jang Wooyoung, new transfer student from Ilsan.

Friendly but quite mysterious.

Junho's twin but both of them are not in good terms due to what happened 13 years ago. 

Hwang Chansung, So Eun's mentor.

The kind of nerd boys that every girls like because hot af.

A quiet boy whom everyone secretly has a crush on.

Nichkhun, an angel in disguise.

So Eun's childhood friend.

Can't get over So Eun eventhough So Eun's taken.

Kim So Eun, Junho's one and only girlfriend.

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