Overdue on My Online Loan, Fitness Is My Way Out

Driven to the brink by enormous online-loan debts, A Zuo unexpectedly gains a mysterious System: Beast Drug, Magic Immunity. While others toil for decades just to glimpse the gateway to mastery, all A Zuo needs is a bottle of medicine. His muscle fibers roar under the drug's effects, allowing him to withstand the palm strikes of external-style masters head-on. His bone density skyrockets, letting him shrug off the qi of internal-style masters. Wielding technology and medicine as his spear, and a body with no side effects as his shield, A Zuo embarks on an unprecedented path to the top through sheer force.