That's only ordinary day for Nam Woohyun. Walking in his way to University. 

Everything's change when he finds a paper plane flew pass him.

He stops and turns around.

The paper plane had falling down not far from his standing feet. His tilts his head and looks around, silly of him, trying to find its' owner. Nam Woohyun finally realized how silly he looks and walks toward the fallen paper plane.

He picks it up and unfolds the paper plane and sees writing on the paper:

 "This life is just too hard to live in.

But never give up of life.

Everything will get better.

Trust in time,

Trust yourself."

"Who are you...?"