I'm The Devil - Chapter 34: The True Powers of Lucifer

I, the protagonist, was just an ordinary NEET, but suddenly I was reincarnated as a tiny white snake in a fantasy world where legendary creatures and gods exist. Not only that, but I awakened in a cave as the offspring of a terrifying Medusa Serpent.Armed with only my human knowledge and my indomitable mental strength, I'm forced to use cunning tactics and rapidly evolving skills to survive against far stronger monsters and humans... So begins the survival story of a former shut-in with incredible willpower, living as one of the lowest-ranked beasts in a world of magic!ᆖMusic suddenly started playing in my head.I'd been waiting for this moment for so long.'Snakes! Assemble'....

Mu Jingzhe transmigrates into a book filled with sweet, doting love to become the useless supporting character who serves as a foil to the female lead. She also becomes the stepmom of five kids to her recently deceased husband.

In the previous life, Jiang Peihuan was tricked by a scumbag and died tragically, which even caused her entire family to be wiped out.

When she was eighteen years old again, she was still the arrogant girl who refused to give in to her husband.

Her fiancé thought she had fallen into the water and lost her virginity, so he came to break the engagement and marry her cousin?

Everyone laughed at her, but she was happy to see the result: one hundred thousand taels of gold, I agreed to it.

After retiring from the engagement, it was rumored in the capital that she was abandoned when she was about to get married.

Unexpectedly, that unparalleled His Royal Highness Cheng Wang stood up: marrying her, why not?

Many well-known ladies’ spring boudoir dreams were shattered, but Jiang Peihuan was very moved and refused.

He is the emperor’s uncle of a scumbag, the youngest son of the late emperor, he looks suave and noble, but in fact he is ruthless.

She vowed to avenge her past life, protect her family and relatives, and did not want to have anything to do with the royal family.

But finally one day, she still accidentally became the envied Princess Cheng.

Jiang Peihuan recalled it, and became angry at the man lying beside him: Xiao Nanye, are you plotting against me?

His Royal Highness Cheng Wang, who was decisive in killing, couldn’t help laughing when he saw his concubine blowing her hair.

He whispered deceitfully, with a lingering voice: Forgive me, forgive me, I only want you alone in my life.

- Description from novelbuddy