Poor little Luhan was left alone to die outside an abandoned factory. His parents left him there when he was only 5 years old and never returned to pick up the poor little kid up. Why would they do such a thing? After ten years, he miraculously survived after all the harsh weather and almost starving to death. Everyone who passed him did not care to help him. He was just a stray dog to them. Until a boy his age came up to him and afford him to stay at his place and his name Oh Sehun.