Douluo Dalu 2: The True God King - Chapter 304: [DD2]:

The next morning, Jian Anning asked, “What is happiness?” Yu Xingxing hooked his lips into a smile and suddenly pulled her into a tight embrace. “Happiness,” he said, “is being with the one you love and doing things that make you happy. Let's continue, wife!” Jian Anning kicked him off. “Get lost!”

The protagonist, Winnie (文尼), confesses his love to his childhood friend—the princess he’s been secretly in love with for years—but is brutally rejected in public. His heart shatters, he’s humiliated and ridiculed, and he collapses unconscious. When he wakes up, he vaguely remembers his past life’s memories and realizes he has transmigrated into the world of an otome game he played before. At first, he’s thrilled, thinking, “Nice! I must have been reincarnated as a villainous side character who disrupts the protagonist’s romance, right?” But then… surprise! He’s not just the villain—he’s the “Saintess”!

On one spring evening when I was eight years old, I, Erica, Duke of Aurelia’s daughter, realized something.

Huh, I have reincarnated into a fantasy world, haven’t I?

Moreover, it was the romance-fantasy girl game that had the reputation of being bloody, 『Liber Monstrorum ~Phantom Beasts and the Winter Princess~』

The face reflected in the mirror was that of the villainess character of that game.

After repeatedly harassing many characters, including the heroine, she would die without exception, signaling the beginning of an event called the bizarre incident. She was a villain who deserved to get the consequences!

—I absolutely don’t want a destiny like that, though?

No, for me who has remembered the memory of my previous life, there would be no such thing.

In my previous life, I was harassed immensely by an irrationally angry yandere man who proclaimed ‘She is absolutely in love with me.’

My cause of death, too, was from being stabbed by another yandere man who I only had talked with a few times……

Now that I have become the haughty villainess Erica, I shouldn’t encounter more misunderstandings like with the previous life’s yandere men anymore, right……?

In that case, it will be fine as long as I deal with the death flags that I may have raised myself.

All right! First of all, before the bizarre incident begins at the Magic Academy, I will strike down the death flags accordingly!!

—Or so I thought, but it seems that I am about to die.

Eeh, how did this happen—!?

“I miss the feudal era very much.” Chen Muyang once said to his friends.

When a friend asked him the reason, Chen Muyang said yearningly: “Because of polygamy in the feudal era, think about it, you can have many wives, you can sleep in different ways every day, and you can sleep together.”

“Cut!” The friends despised them, but their yearning was no less than that of Chen Muyang.

One day, the legendary system merged with Chen Muyang, giving him the ability to travel through the heavens and the world. Chen Muyang’s claws stretched out to countless goddesses in the heavens and the world!

“My, all beauties are mine!”

- Description from novelbuddy