After the True Heiress Travels Back - Chapter 17 - : Sulfuric Acid from the Sky

In this era filled with countless wonderful talents, no one has any expectations for a pair of weak fists anymore!In the human world, there are swords that surpass all the heavens, spears that sweep away thousands of armies, fires that burn everything, and thunder that shatters the sky!Young people have too many choices, and everyone will move towards the most handsome, coolest, and most powerful!Only the stubborn boy chose to practice the fragile fists in front of him.Everyone thought he was crazy until the disaster struck.

When a fantasy kingdom needs heroes, they skip the high schoolers and summon hardened Delta Force operators.Lieutenant Cole Mercer and his team are no strangers to sacrifice. After all, what are four men compared to millions of lives saved from a nuclear disaster? But as they make their last stand against insurgents, they’re unexpectedly pulled into another world—one on the brink of a demonic incursion.Thrust into Tenria's realm of magic and steam engines, Cole discovers a power beyond anything he'd imagined: magic—a way to finally win without sacrifice, a power fantasy made real by ancient mana and perfected by modern science.But his new world might not be so different from the old one, and the stakes remain the same: there are people who depend on him more than ever; people he might not be able to save. Cole and his team are but men, facing unimaginable odds. Even so, they may yet prove history's truth: that, at their core, the greatest heroes are always just human.

Zero, a 35-year-old mercenary, after being betrayed by one of his teammates who told his enemy about him. He chooses suicide so that he can kill his enemy and his traitor teammate. After that, he was reincarnated into the world of magic, in the body of an 18-year-old teenager with the same name as him. However, his body does not have mana or the talent for magic. But with the help of the cultivation system, he has unrivaled power in the world and has a harem of beautiful wives.

One day, a button appeared in front of me.

– Auto hunting by pressing a button.