Must Die at the Start? I Can Change My Life by Extracting My Shadow.

Lin Rui, a Konoha civilian genin, awakened to upgrade the system on his own when he was about to die. With the plot prophets of Naruto fans and the infinitely growing shadow army, he crushed the entire ninja world step by step from the tail of a forgotten crane, and finally climbed to the top of the ninja world as a mortal.