When 17-year-old Lin Chen was expelled from the Chinese National Youth Team, this young man from rural Hebei set foot on the European continent with only his stubbornness. In the quagmire of Cologne's youth training camp, he relied on the mysterious power given by the system and his never-say-die fighting spirit to turn cold-eyed taunts into fuel for counterattacks and write his own legend in the Bundesliga.