Dungeon of Knowledge - Chapter 4: Ancient Shrine

I am the most talented guardian of this era!

But no one knows, I still have a second template, the knife cuts the flesh, the intention cuts the soul!

You may have seen the meatless juggernaut, but you have never seen a full-time meat shield with an explosive attack!

- Description from novelbuddy

Marcus Manfred dreamed of joining the United States Army. That dream ended the day an accident took his life.But he woke up and met a Goddess who told him that he can be reincarnated with a weapon system. He accepted it and was reincarnated in another world.The Military Weapon System, grants him access to modern weapons and equipment. Rifles. Tanks. Fighter jets. Even warships. But everything has a price.To grow stronger, Marcus must take on requests from towns, nobles, and kingdoms: clear monster nests, hunt demons, repel invasions. Each completed quest earns him funds to expand his arsenal.But this world is not Earth.Magic bends the rules. Dragons rule the skies. Demon armies march in the dark. And medieval kingdoms do not take kindly to a man building a private army beyond their control.In a world of swords and magics, can Marcus survive using his modern weapon cheats? Or will magic crush modern firepower?

A thousand years have passed since the Variants first appeared from the Rifts. God answered the prayers of the human race and gave them a chance to fight back.He bestowed special marks called crests upon twelve who were worthy, granting them unfathomable power to fend off the wave of attacks.Well… that's what the church wants us to think.Man, being man, found a way. And in the present day, large numbers of the population have crests, and those that don't are treated as second-rate.This was the case with Marcus, who spent most of his life doing odd jobs—until one of those jobs led to his demise.At the hands of whom??The son of a major crest-bearing house.Marcus is reincarnated into the body of his killer and soon finds that despite being from a major house, the boy did not have a crest.At least, not one that was bestowed upon him by God.

When he returned to the World of Martial Arts, the game was filled with blood and battles! Chen Kaixin had chased after the footsteps of the one emperor, two empresses, three princes, seven dukes, and thirteen aces for three years, but during the eve of the Sword Among Us tournament in Mount Hua, he was ambushed by evil bastards, and was killed so much that his level dropped to that of a newbie. He completely lost the chance to join the ranks of the powerful players in the game! In great disappointment, Kaixin quit the game and got drunk so that he could forget his sadness, but during that stormy night, Chen Kaixin found that he had actually dreamed for a total of three years, because when he woke up again, he woke up to three years ago, when he was still a student.

- Description from Novelupdates