I recommend "The Useless, Defiant Daughter of the First Prince, The Crazy Concubine" to you. It's a fantasy novel about a different world. The female protagonist, Mu Xinyue, is an ace killer with the code name Murder Blood. She lived a glorious life in the modern world, but when she woke up, she found herself transported to an alternate era. She was very powerful, proficient in all kinds of spiritual power, and had a divine beast. The male lead was a mysterious Grand Tutor. Although he did not fall for women, he had a special liking for the female lead. He was very powerful and demonic. I hope you like this fairy's recommendation. Muah ~π