Special Forces King Song Lin accidentally died while performing a secret mission, but was reborn in a parallel world in a peaceful era. He lost his former military rank and glory, but gained a mysterious system called "War Heritage" - as long as he completes daily military training and tactical deductions, he can unlock the equipment and skills of various legendary troops in history. He originally wanted to live a low-key life, but after saving someone on the street and revealing his extraordinary skills, he was involved in a mysterious international mercenary dispute. What's even more troublesome is that the sweet and well-behaved girl next door, Lin Wanwan, is actually the daughter of his nemesis in the previous life, and a mysterious suitor with a twisted mentality is secretly monitoring her. Song Lin valued love and justice and could not sit idly by, so while starting a sweet and thrilling daily life in the city, he used the system to gradually build his own military power. However, the pursuer's madness was far beyond imagination, and mysteries began to emerge in Song Lin's past life memories - this rebirth might not be an accident at all.
