My Sister's Superstar System

Qin Ze’s quiet college life is shattered when his glamorous, yet completely untalented, older sister, Baby Qin, declares her new life goal: becoming a national superstar. Her \"dream\" threatens to unravel his carefully constructed normalcy, forcing him into a role he never wanted: reluctant chaperone to a train wreck. But just as he’s about to report her absurd plans to their parents, a mysterious \"Cosmic Calculus System\" manifests in his mind, delivering an ultimatum: help his sister achieve stardom, or be drained of his very life force! This \"golden finger\" isn't a gift; it's a demanding parasite, forcing Qin Ze to unlock hidden talents and even embark on \"Qi cultivation\" just to survive. With the system's power turning his sister into an overnight sensation, Qin Ze finds himself caught between sibling loyalty and a terrifying realization: every success his sister achieves comes at a physical and spiritual cost to him. Is he her stepping stone to fame, or a battery for an entity with its own cosmic agenda?