Fight to Survive

Shen Du, a pediatrician with training, can see the longevity countdown floating above everyone's head, accurate to the sky. When the life of a critically ill child hangs by a thread, he can perform "life saving" - stripping away 10% of the child's remaining lifespan and turning it into vitality, buying precious time for rescue. The price is the spreading black stripes on his left arm - every time he saves a person, the black stripes advance an inch towards his heart, and the day they reach his heart is the day he dies.