The villainous daughter of the Duke, needs a hero - Vol 2 – Chapter 17: The Murderer Identified.

All the Humans from Earth were suddenly transported into a new world called Celestial World. No one knew the reason why nor what the purpose was all about. They were suddenly transported without any warnings or signs and were forced to live in a mysterious and unfamiliar new world.For 50 years, Humans lived in endless suffering and torment. They were all forced to run from one place to another or else they would be enslaved by other Foreign races that had long been living in the Celestial World.Fortunately, the Human race was finally able to slowly develop its strength and power in the Celestial World through the sacrifice of countless Humans after 50 years. However, it was mysteriously Fated not to last long as an unknown power suddenly started doing everything to destroy Humanity's Kingdoms and Empires.A young man by the name of Leo Heart had his Fate suddenly rewritten by some unknown power to stop this unprecedented doom of the Humans after a Red Cube, that the Heart Noble Household had been keeping as a Family Heirloom from the very start of the Human Race existence in the Celestial World, suddenly jumped up and embedded itself into his right palm.A world full of Mystery in which Magic and Mana had become every race's foundation of existence. A young man who had lost his family for the Human Race's existence has his Fate unexpectedly rewritten after such an encounter.But, would it be enough to stop this so-called unprecedented doom?Would the Human Race's existence be saved by Leo from the unknown yet powerful existence?Or would the Humans sadly become nothing but a mere history in this new world?Note: The art of the book cover is not mine. All the credits go to its rightful owner...

When other people experience a body transformation, it is inevitably either male to female or female to male.

Me? I wake up to find myself transformed into two different bodies.

Both a male body and a female body, one conscience operating two bodies, all sorts of embarrassing moments.

Walking together normally makes other people think that I am sweethearts with my other-self, such sadness.

Also, the entire business of a hero rescuing the beautiful maiden, I call Bull.

I get slashed by a sword and my female body gets abducted, and he wants me to thank him?!?! Can it be less of a tragedy?

- Description from Novelupdates

The previous life is nothing but a joke. Being used completely then abandoned mercilessly. How can I be this stupid to not even notice such an obvious scam? Fortunately, I can have a second chance with my rebirth. Sister, Brother Yi and whoever mistreated me in my previous life, are you ready for my revenge and the counterattack of a princess?

Civilization is destroyed and records lost. Only Dudian survives in a cryogenic sleep. Three hundred years later, Dudian wakes up and must become Dean to survive. Who can he trust in this world overrun by monsters without and within?