Hell's Handbook - Chapter 437

Ten years ago, mana descended upon Earth in the form of Gates that opened into other worlds. These Gates contained Magical Beasts of unfathomable strength and power that preyed upon humans and sought the destruction of everything around them.But along with the Gates, humans gained the power of Gifts—super abilities that allowed them to fight back against the monsters and take back their world.Now, the Superhumans with Gifts are tasked with defending the people and ensuring that the Gates, which open all over the world, do not bring about the end of them all....Jason Marc was just your regular seventeen-year-old high school student whose father abandoned him ten years ago. He worked two part-time jobs while also helping his mom with her diner to aid with the finances, but he could have never guessed that his entire world would change on the eve of his eighteenth birthday.Now, with more power than any one man should possess and an army at his beck and call, Jason works toward protecting those close to him while finding out the truth behind the emergence of the Gates—and preventing the end of the world.

Born with amazing talent and mastery of the sword, at age 13 he awakened his memory about the world thus setting out his own journey and create a world that is for himself and his crew onlyAt the age of seventeen, he went to sea, joined the Rocks Pirates, participated in the Battle of God Valley, plundered the treasures of the Celestial Dragons, formed his own pirate group, competed for the throne of the Four Emperors in the New World, and became the world's number one swordsman.The most powerful attack and the most powerful defense are gathered in one person, and finally became the strongest in the world.Before the war on the top, he helped Whitebeard restore his peak strength. When Whitebeard attracted the attention of the whole world, Li Yuan led his pirate group to attack the Celestial Dragon Holy Land Mary Geoise...

This is the story of a modern sailor who was accidentally reborn as a soldier of the Brazilian Expeditionary Force, and finally became the largest plutocratic family in Brazil by virtue of his foresight.

- Description from novelbuddy

Alexander Gray, a fifteen-year-old teenager on the verge of his awakening and subsequent entry into the Hunters Academy is one day taken away in a cosmic mana wave that passes through Earth’s solar system during a school trip from Earth to Mars. A wave that kills a person once exposed to it. Luckily, the displacement wave placed him close to their destination where he was found, alive and well to the disbelieve of everybody. Unbeknownst to him at the time, the cosmic mana wave had awakened a gift within him that would propel him to the ranks of hero hunter and beyond, granting him the strength to lead humanity in their effort to determine the cause of their universe changing and its implications. ............. “For some reason, I can’t level up.” Alex began to feel frustrated as he was stuck at Class F, the lowest rank a hunter could have after awakening, despite his momentum when he first awakened. Even with his awakened talents and the benefits he received from the ’accident’ that should have killed him, he now finds himself stuck and unable to level up as mana does not work on him like everyone else. Follow Alexander Gray as he discovers his abilities and learns about himself in a chaotic universe and beyond.