Stalker's Game

Why did the stalker choose Hyunsung? It began with gifts. First, candies, milk cartons, confectionaries piling outside his small apartment’s door. Then, the meals. Dinner cooked and waiting for him, perfectly timed for when he arrived late from his mundane office job. Soon he began to accept it, the feeling of being watched, like it even. But why him? Who is the stalker? Can Hyunsung really let this continue...trust him? Or is it all just a game… *All links listed are expired, except for the S.Chinese*