My Alter Ego's Path to Greatness - Chapter 10

Hikaru Nozomi, an ordinary university student, gets recruited by the Order of the Elements after awakening the Element of Light. And his mission? To find the other 9 Elements.

Zhong Qing is expected to die because she was suffering from an incurable disease but she will come back from the dead and will wake up into magical white space called SYSTEM that which revealed her hidden secret. She will become a LITTLE GOBLIN!

Before the task, the system is indifferent.

“Your mission is to accompany the man and help him onto his peak life”

But after the task, she felt love and indignation.

“You get out, system! I thought I would only accompany and help him, you didn’t say that I would fall in love with him!”

The system silently acts dead.

The man also already fell in love with Zhong Qing.

“Honey come on, go home with me.”

- Description from Novelupdates

Introduction One:When Jiang Shouzhong finally resolved to help his wife vanquish demons and uphold the righteous path of the human world, he saw nothing but piles of white bones. Standing atop the battlefield of Asuras, the demoness was none other than his former wife.——Introduction Two:Above the temple halls, beneath the rivers and lakes, where the world of humans and demons divide, along the righteous and evil paths, countless charismatic individuals weave lives full of fireworks, unable to exhaust the tales of snow, moon, wind, and flowers.Kings and generals, peddlers and pawnbrokers, scholars and swordsmen, fiends and phantoms, they are all but pages in a book—each of varying thickness, some with twists and turns, others dull and ordinary, filled with ups and downs, joy and sorrow, or a mix of good and evil, with causes and effects unending.And the book of Jiang Shouzhong's life is undoubtedly the most captivating of all.——

Roy’s life was nothing special. The only thing commendable was the last few moments when he saved a mother and her child from a drunk driver.
…
It’s really an egg! Damn it, what kind of monster have I become? Did I fall into Hell instead of making it to Heaven??
Join Roy as he ventures through various worlds with the Custom Made Demon King System—a system that allows Roy to draw anything he can imagine and create it through exchanging souls!