Crown of Thorns - Chapter 66

The Synders and Thornes had always been the closest of friends. So when Kyra Thorne and James Synders both lost their parents in an accident, twenty-year-old James swore to protect ten-year-old Kyra as though he were her uncle.Twelve years later, Kyra had not only blossomed into a beautiful woman, but she also could no longer ignore the feelings she’d developed for James at nineteen. After three years of struggling to suppress them, she was finally ready to confess.However, what Kyra didn’t know was that James had long discovered her feelings—and had devised the cruelest way to reject her.But, what happened when James unintentionally crossed a line?One thing was certain: Kyra Thorne always got even, even if it meant destroying them both.

She, a 21st century mercenary queen, had crossed over into a tragically betrayed body of a waste. Waste? She will show them what it means to be a waste! Betrayed? With the Ancient Manual in her hands, she will astonish all the despicable men and cheap women!

Wait! Didn’t everyone say that she was an evil woman which everyone feared? Why is his Third Highness, full of mystery and charisma, so interested in her?

- Description from Novelupdates

An Individual from Earth finds themselves in the Shinobi World, equipped with a Scientific System. From that moment, he delved into scientific research far ahead of its time.

After reincarnating as Zhou Xuanji, the prince of an empire, he thought that he would be able to live a worry-free life of luxury. He did not expect to be involved in a rivalry with the Empress herself, who forced him to escape from the palace.