Extra's Harem: Invincibility Starts with Marriage and lots of Children - Chapter 50 - - Wedding day (2)

The scum’s or villain’s long road of transformation was tentatively set to the world:
The abandonment of the educated youth’s wife (Completed)
The hidden marriage of the scum film emperor (Completed)
The best brother in the world (Completed)
The Phoenix male who destroy the bridge after crossing the river (Completed)
The treasonous general (Completed)
I’m an honest man (Completed)
To become the top scorer in the School of Agriculture (Completed)
The soft rice man’s self-cultivation (Completed)
The whole world is reborn (Completed)
I want to survive on a desert island (Completed)
The stallion male who has seized the opportunity (Completed)
The perverted self-salvation (Completed)
The spring of the loafer (Completed)
The misplaced life (Completed)
The miser career (Completed)
The ghost is out of feeling (Completed)
The Queen’s favorite husband (Completed)
The vicious girl with her godfather (Completed)
I want to be a good person (Completed)
I does not tear up the family (Completed)
The perverted common plant (Completed)
The Mary Sue’s men (Completed)
Every time I was reborn, someone wants to kill me (Completed)
The old people’s counterattack path (Completed)
The global evolution (Completed)
When I became a net red (Completed)
For you, good person (Completed)
His heart had white moonlight (Completed)

- Description from Novelupdates

“The True Form Of Order is chaos, It is a tale as old as time itself!”Since Dungeons began appearing around the world, things have changed. The world has evolved, letting dungeons alter the genetics of humans, giving some of them abilities and powers that no ordinary person would have.These abilities were called magic, and the ability to use them or even control them was called having mana. Almost 80% of the world’s population has gotten this ability. When a person who awakens their magic is seen, he or she will be taken for evaluation. To see their strength, there were strong and dangerous warriors who had to be used to keep the dungeon at bay and make sure that nothing happened to the world.Amid all this chaos, Darius Winters, a typical loser trying to make sure he would make enough money to pay for his sister's treatment, joins a guild on a raid. When his life is changed, Darius gains a powerful system, and he can get stronger than he was; the system makes him potentially the strongest warrior in the city.But he chooses to hide from the spotlight and take care of his sister. But how long can he keep up with that? when he is thrown in the middle of a brewing war between divine beings

As a promise, he went out into the world as an assassin. 3 years later, after becoming the Supreme Assassin, he gave up on everything he had and returned to the ranks of ordinary people. But one day, Kismet, a mystical game created by the National Research and Development had appeared.

Enigmatic hands, spectral frame, and one cunning strike just like the swing of the Grim Reaper. The Supreme Assassin takes on the mystical world, and how his legendary tales sets off, progressively ascending the altar to becoming the best.

- Description from Novelupdates