Kim Taeyeon - Popular, cute, serious but she's a dork.  Tiffany Hwang-- She's also popular but not as popular as Kim Taeyeon. Dislikes Kim Taeyeon for some reason. 

"Past cannot be changed, forgotten, edited or erased; it can only be accepted"   You held on but I didn't. Why? Just because I was scared of what people might say. I was scared being disown by my family. But you... you only cared about me and you and our love. You were willing to fight for me with your parents when they learned about us. But I... just let you go. Even worse I made you go.