Park Leeteuk is a 20 years old Music university student. He suffers from a heart disease. He has been having some strange dreams where he appears as a girl named Jungsoo.

Kim Kangin. He also studies music in university. He's 21 years old. He comes from a rich family. He also has those dreams, just that in the boys POV.

Choi Top is Leereuk's classmate and bandmate. He disliked Leeteuk at first. Also comes from a rich family. In the dreams he is Jungsoo's master, and fall for her, as well as for Leeteuk.

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I actually has already posted this, but IDK why it got deleted T^T Hope you like it, comment and subscribe ;) 
BTW, this fic was originally in spanish, but I'm translating it (I am the author)