It felt like Taemin had been on his own now for longer than he could remember. Why hadn't Siwon come back yet? He never left for more than a few hours, he had even told him that he hated the outside world. But now it had been months. Taemin had no real sense of time, being a doll it was easy for him to sit in the same place and the same position for years. He had acted like a simple doll for some past owners, ones he didn't trust, and still didn't. But sitting as still as a doll didn't stop his mind from whirling in and out of panic. Siwon had been the best owner and friend he had ever had. He had never asked for much but Siwon was something he didn't want to let go of. 

In the back of his mind Taemin knew that Siwon was old. Older than he had seen any of his past owners, though not as old as the woman who had first brought him to life somehow. But to Taemin, age also seemed a foreign thing to him. He didn't know death and growing old. He knew that Siwon had become weaker and he relied on Taemin a lot around the house, the main reason Siwon had never accepted any help in his old age. But he didn't know that people died... disappeared forever... he was angry with Siwon for leaving him for so long, for frightening him.
And as he heard the front door open for the first time in months he sat, silent and unmoving, determined to ignore Siwon in punishment for being away so long, not knowing it wasn't Siwon stepping through the door.