Hundredfold Heart of Iron

Radomir watches his life fade away on a cold stone floor, a victim of corporate sabotage meant to crush his family's dojo. His only regret is his younger sister, Milena, whose rare illness requires a fortune he can no longer earn. As his heart fails, a system activates: [Heart of Iron Protocol Initialized]. He is given a choice: die, or return to his body three hours earlier with the power of the 'Simulacrum Chamber' - a time-accelerated space where one hundred phantom copies of him train in parallel. The catch? The system only works on the most basic, 'inefficient' martial arts forms, the very ones mocked by the world's elite. Now, with every simple punch he throws multiplied by one hundred lifetimes of practice, Radomir’s growth becomes terrifyingly exponential. He begins a ruthless climb, earning prize money in brutal tournaments to fund Milena's treatment, all while secretly hunting the saboteurs who left him for dead. But as he grows stronger, he realizes his sister's mysterious illness and the conspiracy against his family are not separate misfortunes. They are two heads of the same monster, one he is unknowingly feeding with his own rapidly growing power. Can he master the art of the basics fast enough to save her, or will his hundredfold strength only hasten their shared destruction?