In This Life, The Greatest Star In The Universe - Chapter 14:

In the heart of Dirtwich City, the Ruan family’s monthly combat contests draw fighters from all around. Among them, Ruan Xiude, a striking young competitor, stumbles upon a hidden Void. This Void reveals to him a unique attribute panel, visible to him alone. It grants him the Divine Level Duplication System, marking him as its sole chosen wielder. Ruan, once a simple orphan, now emerges as a notable figure in the martial realm of Zenithia Continent. Despite his talents, he’s not seen as the top contender in the Ruan family.Armed with the ability to duplicate martial arts and magical skills, Ruan’s destiny and the world’s balance are poised for a dramatic shift.But what unforeseen consequences will Ruan’s new powers unleash?

Takahiro Nao, a 25-year-old burdened by crushing debt and driven solely by his love for his struggling family, meets a tragic end—until a mysterious Goddess of Benevolence offers him a second chance: reincarnated in another world, and his efforts there will provide for his family back on Earth. Awakening in the body of Naoki von Blackmore, a disgraced “Failed Hero,” Nao is thrust into a realm of sword and magic, monsters, and war, tasked with the impossible mission of defeating the Demon King. With newfound powers, a shadowy past, and the weight of two worlds on his shoulders, he must battle not only relentless enemies but fate itself. Blending emotional depth, thrilling action, moments of humor, and a spark of romance, this gripping isekai adventure asks: how far would you go—and what would you sacrifice—for the people you love?

The journey to the martial peak is a lonely, solitary and long one. In the face of adversity, you must survive and remain unyielding. Only then can you break through and continue on your journey to become the strongest. High Heaven Pavilion tests its disciples in the harshest ways to prepare them for this journey. One day the lowly sweeper Kai Yang managed to obtain a black book, setting him on the road to the peak of the martials world.

- Description from novelupdates

Su Heng had traversed to a world where demons were resurrecting, and the human realm was like hell.Water ghosts, fog demons, and drought monsters... powerful demons plagued the land. Major clans used fierce spirits for medicine, residing high above the clouds, while common folk struggled desperately amidst a divine, eerie apocalypse.In these chaotic times, Su Heng awoke with the talent of a Celestial Eater.His body grew limitlessly, gaining a property point for every pound he gained in weight.The bizarre and terrifying demons who slaughtered cities and eradicated nations were, to him, the most sweet and superior ingredients.He devoured their flesh and blood, feasted on their sinews and bones, plundered their Divine Skills, and seized their destinies.From the “Pure Yang Skill” to the “Heavenly Demon Transformation Technique,” from the “Golden Bell Guard” to the “Demon Buddha's Golden Body,” even the most ordinary martial arts in Su Heng's hands could burst forth incredible power.Years later...Su Heng's demonic body was colossal, his weight immeasurable.With a hundred hearts and a thousand arms, mortals were nothing more than ants to him — all gods and buddhas of the heavens, come to battle!