Taemin and Jonghyun are brothers both are best friends with Kibum, or Key.

Taemin

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A sophomore who has the ability to dance. He's childish but also very shy. He's in love with Key, but he wont hide his feelings for long.

Jonghyun

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An upper classman in his senior year. He looks after both his younger brother and best friend, Taemin and Key. He's dating Sekyung , but he starts to have feeling for Key too.

Kibum(Key)

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One grade lower then Jonghyun, he has a very feiline look.

Other characters: Onew, Minho, Sekyung, Jessica, and Kai