MTL - Immortal Fate of Longevity: Starting From Taking Care of Daoist Brothers, Wife and Daughter - Chapter 15 : Sincere borrowing

The Supernatural era descended, the rules changed, mystery arrived, and the world altered. Countless ruins of civilization emerged, and an abundance of Heavenly Materials and Earthly Treasures lay at everyone’s fingertips. Radical faction, “This is the best of times, entering a new world, excavating relics, mass evolution!” Conservative, “This is the worst of times, with countless monsters outside, once you leave the Safe Zone, extinction awaits humanity!” … Meanwhile, at a remote ruin, Lu Yuan successfully discovered new treasures and sought after the mysterious wealth, desperately trying to contact his fellow Earthlings. “Found a communicator, can it get through?” “Hey, humans—I’m almost becoming a god, and you’re still hiding in the Safe Zone?”

The formless ancient world was infested with despicable demons. They hunted and feasted on mankind, keeping the human civilization constantly in a weak and suppressed state.

During the first known year, a magical mountain descended into the world from the realm of the Gods. Carved on this enormous mountain was a message: ‘Heaven Prevails’…

After the Grand Descent, a name that was given to the descending of the mountain, the Three Great Sages made their ways to Mystic Mountain where they learned to harvest what we now call magic, establishing the Mystic Cults and eighty-one sacred shrines to help aid mankind with the cult’s mystic powers against the eternal fight to the death with demons.

- Description from Novelupdates

Arakawa Kouki is reincarnated to a Japan with a different history than the Japan he knows with the memories of his previous life still intact. Kouki was discouraged, “Aren’t reincarnation stories supposed to be at some fantasy world filled with swords, magic and elves?!”

“The world’s not fair, but fairness doesn’t pay the bills. You don’t wait for a handout — you build your own damn ladder, one step at a time.”Ethan Grey’s life was built on ambition, hard work, and hope — until a single accusation destroyed it all.Framed by his ruthless boss, Ethan loses his job, his reputation, and is left drowning in half a million dollars of debt.Cast aside by a society that thrives on crushing the weak, he’s at rock bottom with no way out.But in his darkest moment, something extraordinary happens. A mysterious system awakens, offering Ethan a second chance — but with rules.[Congratulations, You have awakened the Harem Investment System]It can’t make him rich overnight, and it won’t give him shortcuts. Instead, it points him toward physical investments: crumbling properties, broken-down machines, and forgotten treasures.Each one is a gamble, but with every success, the system rewards him with newfound skills and opportunities.