El pacto de amor que lo hizo invencible

With only 176 days left to live, 49-year-old veteran Leo Miller unlocks a Love-Oath System. He spends everything to free three demi-human sisters and binds them through sacred vows. Reborn young and nearly unstoppable, Leo rescues General Lila, awakens greater power when the sisters fall pregnant, and storms the frontier to crush an imperial plot.