Lin Dongran, a sickly boy who was born with a frail body, traveled to the Naruto world when he was about to die. When Kushina Uzumaki was just pregnant with Naruto, she obtained an unorthodox 50-50 system. Whenever you play against someone, it's a 50-50 split. Lin Dongran used his system to prevent the tragic death of the Fourth Generation Eye and Uzumaki Kushina, prevent the tragedy of Uchiha Itachi's genocide, and replaced Kakashi as the mentor of Team 7.
