Wedding Night: I Became the Female Supporting Character and Married the Villain! - Chapter 7

In a fantasy world where everything depends on level, only ostracization and pain awaits a man that is unable to level, even if he was of noble birth.

But what happens he discovers an alternative source of experience…

A giant golden tortoise, as huge as the world, crosses a broken world.

Seeing the vast world in ruins, Xu Feng slammed the giant golden tortoise on the head.

“Be careful next time, don’t use such brutal methods.”

The story begins with a young turtle-raiser who wants to live a stable life in a small family.

- Description from novelbuddy

Name: ParadoxSpecies: Snake, ?Description: A tiny snake with great potential.That was who I was. That was what I was. A tiny snake with great potential. The sole creation of the Great Core.It was just us, the Great Core and I, tucked away in our little corner of the World Dungeon. Together, we hid from the bad-things and the Coreless of the world outside - safe from the horrors that would consume us.Until, one day, the Coreless found us. Until they tried to steal away my creator. Until, with no other option, I swallowed the Great Core that had made me.Only after that did I become what I was always meant to be.At last, I became the Great Core's Paradox in more than name.[The Endless Cycle] began.Thus begins the story of a little snake zealot and his journey to greatness.

Jiang Pengji got something called the Court Intrigue Stream System.
System: “Your goal is to become the most prestigious woman in the kingdom (the Queen)!”
Jiang Pengji: “Okay, System. No problem!”
Years later, she met the target by becoming the most prestigious woman (the Empress).
Jiang Pengji: “Well done, no?”

- Description from Novelupdates