Jitsu wa Ore, Saikyou deshita? ~ Tensei Chokugo wa Donzoko Sutāto, Demo Ban'nō Mahō de Gyakuten Jinsei o Jōshō-chū! - Chapter 5: What a Baby Needs to Live

Earth, 22nd CenturyThe incurable cancer that served as a nightmare for people one century ago is now just a rare but curable disease.With the world’s development, there are now cures for all types of cancer. The Earth is now a planet with no more people suffering from cancer.Except for Zen.Diagnosed with a mutated cancer that was the only one of its kind at an early age, he sank in despair.That was until an opportunity which turned his curse into a blessing presented itself.What power would Zen gain from the disease that plagued him since his childhood?***The art is not mine, all credits to the original artist.

William was once a gamer ranked in top 20 worldwide. After his death, he found himself in the body of an insignificant NPC in the game “God's Apocalypse.” This NPC was doomed to die early in the game, filling William with dread because he knew he had only three months to live.The game world of “God's Apocalypse” was rich with many different fantasy races, from elves to dwarves, each offering unique opportunities for him to make use of, as well as challenges to home oneself.William was terrified because he had the knowledge of the game's future but lacked the power to change his fate.However, he was not without options. He retained his game panel and the unique talent “[Jack of All Trades],” which allowed him to learn skills from various professions.William realized that when the game's beta opened, players would arrive. As an NPC, he could assign quests to them and use his knowledge of the game's future to manipulate them to do his bidding.He began to leverage the abilities of the players to alter his fate and grow stronger.William made alliances with various races, gaining their trust and learning their secrets. This enabled him to transcend the boundaries of his initial condition and steadily increase his power.As William's power grew, players in the game started to complain: “This boss is impossibly strong and keeps getting stronger, we demand a nerf!” They were frustrated by his rapid progression and the unique challenges he posed.In contrast, the elves venerated him: “Lord William is the ultimate chosen one, bringing an unparalleled peace to our realm.” They saw him as a savior who brought stability and hope.The mages revered him as well: “He is the trailblazer of magic, our protector. His name, William Cain, is synonymous with the god of the arcane.” They admired his innovative approach to magic and his role in advancing their knowledge.When asked how he managed to achieve such feats, William simply responded, “Knowledge is power, and it's the one thing I don't lack.”

In my previous life, I was half a move short and ultimately failed to reach the summit. Having traveled back to the past, this time... I want to become the strongest in this world! To become the strongest in this world, one only needs three simple steps: 1. Pick up a newly-transferred Demonic Sect Enchantress off the streets. 2. Subdue and vanquish the demon. 3. Take her cultivation technique for myself. Awesome! I’m already invincible! ———————— Years later, Yan Yu, who had earned the title of “the strongest,” was interviewed on television: Host: To whom do you want to give thanks for your success today? Yan Yu: I’d like to thank a very important woman to me. Host (eyes lighting up): Oh, is she your wise and virtuous wife? Yan Yu: No, consider her a stepping stone, I suppose. Host (wiping sweat): Then... what about the other members of your team? They must have helped you as well, right? Yan Yu: ... How could there possibly be only one stepping stone on the path to godhood?

Another entry in what you can call the Proto Harem Series: the books written before the Harem Series that take place in the same world.

It’s about a swordswoman whose student is captured, so she goes to rescue her.