Siwon never understand. How did his adoptive brother -Cho Kyuhyun- find his strength. He never see his -adoptive- brother, broken into pieces, though he had a hard life. Kyuhyun, a smart, dilligent, soft-hearted boy, but sometimes evil and being a jerk, is Kyuhyun that he knows. But when Kyuhyun's wall-defense had fallen, Siwon saw the real Kyuhyun. So fragile and vulnearable. And Siwon just can't leave him alone. He promised to himself, he'll make his brother, smile, once again.