You and Go Eunhyuk were best friends since childhood and you were still close to each other even into high school. Sometimes Eunhyuk teaches you how to play the piano.

Now, you're in the music room, alone. You are sitting in front of the piano reading a piano chord book.

A cold can of drink sticks to your cheek, he just came back to the music room and started to sit beside you. His face looked cold but there was a faint smile on his face.

"A cold drink to refresh your brain."