MTL - Wonderful Life After Exchanging Fate - Chapter 123

One week. If you survive, you choose a Cosmic Power... you survive. Jace isn’t one to give up. Not when his sister dies. Not when he loses his legs. And definitely not when The Cosmic System takes over Earth. With nothing more than his street smarts, the clothes on his back, and a river otter companion; he must survive a planet full of vicious predators that see him as an easy meal. If he can survive? He gets to choose a Cosmic Power and a Class. A path to ascension. A way to bring his sister back.

He is a young man without a spirit root. It is believed that this denies him the chance at cultivation. However, a mysterious lady imparts a Supreme Demon Classic to him and from then on, he starts his path of cultivation.
He undergoes a total transformation to emerge as the most fearsome and powerful fiendish demon in his era, that even immortals and fiends are fearful of him, and saints are at his beck and call.
Mastering the Supreme Demon Classic is the turning point in his life. He is able to unleash his immense and divine power from within, illuminating the entire universe!

- Description from Novelupdates

After 2000 years has passed, the ruthless demon lord has just been reincarnated! But his aptitude at an academy for nurturing candidates for demon lords is, “Inept”!?

She just took a nap in the lounge, and when she opened her eyes, she was dressed as a fat country girl who was illiterate in ancient times.

Not to mention delicious and lazy, he is still domineering in the village.

No one wanted to marry her in the eight townships of ten miles, so she finally bought a golden tortoise-in-law.

In a rage, the old bully went down the road and kidnapped a husband for her.

It’s just… Dad, isn’t there something wrong with what you kidnapped?

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After marriage, Fatty Su is very busy.

Busy transforming bully dad and bully brother.

Busy rescuing the beautiful god general husband.

Busy raising three little bullies, Xiaodouding.

Accidentally, she was busy becoming Dayan’s most powerful 1st rank mistress!

- Description from novelbuddy