"There's no part that my eyes haven't seen."
Childhood friends Moon Sae-han and Shin Cha-on.
While the two, when younger, had no secrets between them, Cha-on started to realize that Sae-han's gaze towards him started to feel different.
Sae-han had purposefully built a wall between him and Cha-on, only to protect his secret.
As time passes, Sae-han starts to approach Cha-on in a more secretive, calculated way...