Omnipotent Husband System - Chapter 460: Sudden Changes.

After accidentally transmigrated into the world of Hunter x Hunter, Akira discovered that he was an extremely rare natural Nen user!With the Nen ability Pokémon Master, he could automatically spawn Pokémon simply by traveling or participating in events.As he journeyed to various places, his Pokémon team grew larger and more formidable!The beautiful and powerful “Psychic Queen” Gardevoir.The “Purple Glutton” that devours all evil Gengar.And countless pseudo-legendary Pokémon!Before he knew it, Akira had become the strongest in many fields across the world!Now standing before you is the world strongest Nen exorcist, the strongest Floor Master of Heaven Arena, a Triple-Star Hunter in the fields of ruins, gourmet, and bounty hunting, and one of the world' top five Nen users—Akira!TL Note -This is a Translation

A teenager named Evan Mason was reincarnated into the magical world of Harry Potter and goes to school at Hogwarts!
With only his knowledge of the future and great talent for magic, he takes the path towards the top of the magic world, only to realize that ever step he took, changed everything!

- Description from Novelupdates

Lilian laid on his deathbed, his life nearing its end.Surrounded by the cold quiet of a hospital room, he had spent his last months immersed in novels on his phone.One novel, in particular, had captured his heart, and he yearned to finish it before succumbing to his incurable disease.But as the end drew near, he realized he couldn't access the final volume.Helplessly, he regretted the opportunities he had missed in life.And death had finally come knocking.“If only there were another world... that could offer me a second chance,” He whispered.“If only I could live a second life... in a time when I had listened.”

One day, a mysterious tower suddenly appeared in the city. The people decided to call it a dungeon, and while it was full of rugged terrain and dangerous monsters, it was also a land of opportunity, where countless treasures awaited. When Sejun, a young man living an ordinary life, is invited to the dungeon by chance, he is thrilled at the prospect of becoming rich, but he is stranded in a hidden area of the mysterious tower. All he has is a few seeds and his body. Now Sejun must farm, collect resources, and figure out his own survival strategy!