My beloved wife gifted me an Evolution System - Chapter 4: That’s cheating

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!

When Lu Jingyan first met Sheng Xian, a thought popped into his head: he wanted to see this man cry.Latter, Lu Jingyan cried....Lu Jingyan first met Sheng Xian in a bar, her phone had no signal, so she asked him to lend her his internet, asking him what the hotspot Wi-Fi was?He said, “Your birthday.”Lu Jingyan didn't have time to enter the password before her friends called her away.She thought that Sheng Xian using her birthday as the password meant he must like her, though he was a bit introverted. She flirted with Sheng Xian overtly and covertly for half a year before she discovered that Sheng Xian's Wi-Fi password was: nishengri...Gorgeous young heiress X youngest professor of Law SchoolSweet text.1V1.

A failed investor from 2017 got drunk and woke up in the 1980s. China is just opening up, and the economy is blooming. There is also the dissolution of the Soviet Union, the bursting of the Dot-com bubble and other financial crisis. He used his knowledge of the future and slowly build up his empire.

- Description from novelupdates

Zion, a solo adventurer, recklessly entered a dungeon beyond his ability.Alas, that was the last thing he did. Wandering inside a dungeon for hundreds of years, as an undead, he kept advancing into the dungeon. Slaying monsters left and right until his undead body underwent ‘evolution’ many times over――――By the time he regained his ego, he had already become the strongest undead: 【No Life King】.Humankind, who was made aware of the appearance of a new world-class disaster monster, felt dread as they fell into the abyss of despair. 「The world is… done for.」…Or so they think.「It’s okay, do I look like an evil undead to you?（Smile~）」「「「HIIIIIIIIIIIII?!」」」「…SOMEONE PLEASE TELL ME WHYYYYYYYYYYYYYYYYY?!」This was the tale of the humans who trembled in fear [out of their own convenience] and him, an undead, who actually had no intention to destroy the world.