One-Click Upgrade: Super Decomposition System - Chapter 426

Forty years ago, Gu Hai, transmigrated to a brand new world where the cultivation was no longer fiction but a reality. These are the tales of Gu Hai’s life since his arrival at the Chen Kingdom as he becomes the biggest merchant of six kingdoms.

Cross is a laborer and helper working in multiple construction sites and stores to pay his bills and food. The pay isn’t much, but he is content with his life. He has a job, a crappy rented apartment, and a girlfriend.

But it all shatters when the world changes one day. A strange phenomenon teleports everyone into a world of fantasy, magic, dangerous beasts, and mystifying creatures.

Everyone is given abilities, skills, and spells and can level up like in a game.

And that’s not all. They are transported in a medieval timeline where technology is nonexistent, and living is harsher than one might expect!

When Cross swipes his hand, a screen appears, and the first thing he read.

‖ E V I L S Y S T E M

S I D E Q U E S T ‖

* Insult Someone

Reward:

+100 EXP

* Spank a girl’s butt

Reward:

+1,000 EXP

‖ E N D ‖

‖ E V I L S Y S T E M

M A I N Q U E S T ‖

* Brake up with your girlfriend

Rewards:

+10,000 EXP

Egg (?)

Leo awakens in a world he doesn’t recognize, with no memory of who he is or why he’s there. All he knows is that survival isn’t just a necessity—it’s his only chance to uncover the truth.Thrown into a brutal test for assassins on a hostile alien planet, Leo quickly discovers an extraordinary instinct for combat and evasion—abilities that feel second nature, yet remain a mystery even to him.But as the blood-soaked trials unfold, whispers of his lineage begin to surface. In a universe where gods are eternal and invincible, Leo carries the blood of the one being who defied that rule: the Timeless Assassin, a legend feared by mortals and deities alike.Now, hunted for what he represents and burdened by a legacy he can’t yet comprehend, Leo must forge his path through a deadly labyrinth of enemies, alliances, and cosmic conspiracies—all while piecing together the fragments of his forgotten past.For in the shadows of his fractured identity lies a truth that could shake the heavens themselves.

Sirens: a name derived from an ancient creature, used to describe those who could charm, lure, control, and heal others by singing.

Subjected to live the life of a siren, Aria had experienced, seen, and heard many horrific things. Broken beyond repair, Aria resigned herself to death, when suddenly…

The Grand Duke, Lloyd Cardence Valentine, arrived and whispered, “Should I kill everyone here?”

“If you need me, just call me. Your song will always reach me, wherever you are.”

In the end, Aria called the devil, bringing death to all those present, along with herself.

“Let’s fall down to hell together.”

And with that, Aria breathed her last and died… only to return to her 10-year-old self.

Now that she had a second chance at her life, Aria was determined to change her fate, as well as the cruel fate of her saviour, Grand Duke Valentine.

And so… Aria proposed to him with a marriage contract.

She sold her soul to the devil and vowed to protect him.

The young duke took the contract from her hand.

“So, where should I stamp the seal?”

* * *

“You said you’d divorce me within 10 years.”

The grown-up villain leaned in, hovering his head before he kissed her tenderly over her crown.

“Now that we’re adults, we should sign another contract.”