In Different World with Naruto System (WN) - Chapter 303: Sawarabi no Mai

Young Master He had always been a male god in the eyes of others.

After an explosion, You XiaoMo finds that he is now a probationary disciple of the TianXin sect. However, he is one with dubious potential, so just when he starts to adapt to his new circumstances, he receives a piece of bad news. If he is unable to produce the required result after half a year to become an official disciple of the TianXin sect, he would be driven out of the sect.

Past life, her spirit root was dug out from her body. She had wholeheartedly dedicated herself to the just path, but she was sentenced as an evil demonic cultivator.

Returning back to her juvenile years, she turns the tide. Against natural order, she had been reborn. Those who had deceived and humiliated her, she would return it to them a hundredfold with additional thanks.

Studying her own blood vessels, she recasts the best quality spirit roots. She destroys those rascal clansmen and returned home with glory!

The rules of the world do not hold her down; this time around she kills through the righteous path.

He is the universally admired spirit emperor, high above others, cold, proud and aloof. But every night he sneaks into her room and takes liberties. “Little runt, won’t you think it over?”

“Do I have a choice?”

“You can choose from giving birth once or giving birth twice.”

“Why must I?!”

“Because you stole my heart.”

- Description from Novelupdates

Lady Bertia, who’s become my fiancée, is a bit odd. On our first meeting, she proclaimed herself a villainess noble girl who’s been reincarnated and said that she’s working hard every day to become a splendid flower of evil that’s elegantly put in her place.

I don’t get it.

But she entertains me because I don’t understand.

That’s why I think I’ll observe her for a while.

This is a story of a crown prince who’s so talented and handsome that he’s grown bored of his easy-mode life. A story of this prince observing a self-proclaimed villainess noble girl (who seems perfect at first but is a bit off) who’s become his fiancée as she snatches flags and breaks them into pieces.