I Spread my Genes to Level Up in the Apocalypse - Chapter 219 System?

Life Demon, Law Demon, Knowledge Demon, Fate Demon, War Demon…

When various strange forces invaded, the world has since been divided into two distinct ends.

Some people worship him as a god and walk on the earth as a spokesperson.

Some people choose to drink a glass of strong wine on the scarlet night and raise the shotgun in their hands.

- Description from novelbuddy

“Reincarnated into the World of Magic as a demon, the last thing Davis expected was to grow up right amidst the arms of angels. Ever since the group of philanthropic angels took pity on his miserable birth and adopted him, Davis has been forced to keep his evil identity a secret while he signed in to the system.

“”Ding! The Host has signed in at Angel’s Pond, ‘The Saint’s Halo’ is rewarded!””

“”Ding! Devil’s blood activated. Sign in error. ‘The Devil’s Curse’ is additionally rewarded!””

“”Ding! The Host has signed in at God’s Throne, ‘Gold’s Holy Axe’ is rewarded!””

“”Ding! Devil’s blood activated. Sign in error. ‘The Devil’s Manifistation’ is additionally rewarded!””

After a thousand years of quietly signing into places in the City of Angels and being rewarded with double the rewards, Davis’s true identity finally came to light! Now as a true Devil, Davis had both the world of angels and demons surrendering at his feet!”

Su Leyun, the legitimate daughter of the Hou family, was replaced by a peasant woman during a plague when she was still in her infancy.

After experiencing hardships in life for more than ten years, she finally returned to her parents, but she was plotted and framed at every turn. She was even looked down upon and treated coldly because she grew up in the countryside.

She originally thought that her sincerity would impress her husband and win him the gift of betrothal, but she didn’t know that he only married her for the sake of pretending to be a match.

After resurrecting her life, she vowed to make those who bullied her pay the price. She knew what it meant to be respected as a legitimate daughter!

- Description from novelbuddy

“Hmph, my dumb big sister is in danger!” A mischievous grin spread across his face. “Hehehehe... this gives me the perfect excuse to finally use this treasure I’ve acquired but never bothered with!” He rummaged through his belongings, carefully selecting various items. “A bit of this... and this... and a dash of this.” Boom! The explosion of energy sent a ripple through the air as he laughed maniacally. “Hahaha! It’s done! Now, all I need is a compatible host for it.” Years later... “Did I overdo it?” he wondered in awe, watching as his creation wreaked havoc, conquering world after world with ease, as though stealing candies from children.