Invincible Life-for-Power System

Top-tier spy Chen Hua arrived after transmigrating with a miraculous System he'd stolen, and possessed the body of an utterly useless good-for-nothing. His talent awakened, and he began a slaughter across the land. Heard you live a long time? In the next second, your lifespan is mine. As long as he has enough lifespan, Chen Hua can exchange it for anything he wants. There's nothing a single 648-year charge can't solve. And if there is, just charge again! Other people spend money to power up; I spend lifespans! Are you scared yet?