The Extra's Harem In Dead End Game - Chapter 39: The library

A skilled but unfortunate modern-day assassin was killed in a freak accident. However, he soon found himself summoned to another world by an evil wizard, who had him possess the body of a boy as an experiment. After successfully planning the evil wizard’s downfall, he used the wizard’s body as a springboard to gain influence and power in his new world.

- Description from Novelupdates

In a world where the boundaries between dimensions are thinning, a young man named Kael Ardent is thrust into the Eternal Nexus, a realm where countless worlds converge. Here, the laws of reality are dictated by Aether, a mystical energy that fuels both creation and destruction. Kael discovers he is a Nexus Warden, a rare being capable of manipulating Aether to bridge worlds and command the forces of the Nexus.But the Nexus is not a place of peace. It is a battleground for Eldari, ancient beings who seek to control the Nexus and use its power to dominate all existence. Kael must navigate this treacherous realm, forge alliances with warriors from other worlds, and unlock the secrets of his own latent powers. As he grows stronger, he uncovers a prophecy that foretells the rise of a Prime Warden, a hero who will either save the Nexus or doom it to eternal chaos.

There once upon-a-time roamed a boy.The boy went from a baby to a toddler. Then from a toddler to a child. Then a child to a boy. Then from a boy to a man. But, no matter how old he grew, no matter how much time passed, he kept on pondering and pondering, if people reflected on their existence, then what did existence reflect on?No matter if he was crawling on all fours with pacifier, drawing a red house on a green hill with a painting brush, fishing for big and small fishies in his small, little boat, skinning a deer he had caught, or even sleeping, the question persisted.No matter how much he thought about it, he couldn't reach the answer.He became a tutor, a teacher, a killer, a hacker, a criminal, until there was once thing he still did not become.A God.Being subjected to a heavily traumatizing event, Amon now wakes up to only to find himself in a game called 'The Adventure of the Hero: IX' he had once played a long time ago, where he finds a world filled with swords and magic, a magical academy, demons, high-ranked devils, dragons, and advanced technologyFollow the story of Amon, the eighth mechanism of the universe, as he navigates through worlds, universes, multiverses, and the omniverse. gathering the rest of the eight mechanisms, fighting against ancient and outer gods, becoming a tutor of a certain, little daughter-of-a-demon-king, put on a witch hunt of eldricht cosmic horror entities, attending an academy with the protagonist, heroines, villains, villainesses, and even a transmigrated third-rate final boss, meeting witches, creating sects, meeting the 9 goddesses, going against both Orthodox and Unorthodox churches, and many more!This is the story of a boy that had nothing, the story of the boy who knew the price of zer0, the legend of the boy known as 'The Happy'.The Boy who had a broken God Complex----------------------WARNING: This novel delves into themes of madness, insanity, and distorted realities. As the story progresses, it may change your perception and evoke unsettling emotions. Reader discretion is advised. Take care to recognize when to step back if you feel overwhelmed.

Other people earn points, gain skills and attributes after transmigration, while I end up planting trees?