Demon Boss in the Human World - Chapter 71

Xuanyuan was reborn into a strange new world where training to be a Xian was a cornerstone. There was however something ancient dwelling inside his body. He could now devour all of creation…

Masterpieces such as 'The Divine Comedy', 'The Theory of Evolution', 'Encyclopaedia Britannica', 'The Theory of Relativity'...Born in the history of human civilization, possess mysterious and magical powers in another world!Original sin, biological evolution, mastery of all arts...By reading the secret tomes, one can gain a variety of powers!The only trouble for the people of the other world is that they find it difficult to understand the texts from Earth.At this time, there comes a librarian from Earth...

Once again, Ye Zhen Zhen had lost her memories. When she opened her eyes once more, arranged in front of her were——

1. A Maternal Grandfather, the Murdered Victim

2. A Large Inheritance

3. A Deeply in Love Fiancé

4. An Overbearing Maternal Uncle and his Wife

5. A Docile Servant

6. The Aloof, Cold, Abstinent Doctor in Charge of the Case

7. A Seemingly Difficult Police Officer

Reincarnated as a detective, Ye Zhen Zhen stared dubiously at them all. Who was the murderer? Was it her? It…?

Only one was the real murderer, but there was far more than just one culprit.

- Description from Novelupdates

A replica of Marquis Kieran Vale, the son of the Marchioness of Vale, who she deemed a failure. That was all she was. No, she was now referred to as “he.” At least until she met Claude Del Ihar.