Rebirth in 1980: The Farm Wife Makes a Comeback - Chapter 9 He is a Thief

This legend tells the tale of the protagonist, Kuroki summoned to protect the demon king from the hero.

Kuroki, unbeknownst to him, suddenly came to another world. He was summoned by the demon king, Modes. The territory which the demon king overrules was in the midst of being destroyed because of the hero. He had no choice but to bow before Kuroki.

“Please save us, Savior Dono!”

Kuroki nodded, deciding to save the demon king due to an unexpected turn of event.

“Even in oblivion, you all shall tremble at the demon that lies beyond...”---Beaten, betrayed, discriminated against, and then sent into hell. Those were the words that defined Khan's life, if he ever bothered to think about it.In a cold world where the hearts of people surged in preparation for the next cataclysm that had the potential to wipe out the entire world, who had the time to care for a feeble, golden-haired anomaly with no memories of his first ten years?Sent away from the orphanage with the mission to end his life, fate was still not satisfied with punishing him enough.He found himself in front of a demon god who raised children into killing machines, known to complete every mission irrespective of the danger.Among a group of madmen, he was the maddest, given the name “The Hollow” due to his unfeeling attitude.But in essence, all he ever needed was a place he could call home and when his life flashed before his eyes and he awakened his memories, he embarked on that path.-----“My origin might be ten thousand light-years away from Earth, but even if I have to walk on the corpses of a million to reach it, then so be it...”-----But now he won't be walking this dark path alone:[Congratulations, the Host has successfully fused with the system.][Congratulations, Host has awakened The Bio-Nanotech System!]--------[Also Check Out My New Novel: Infinity Guardian System]

After getting shot, Lucas, a serial killer, reincarnated into the novel world as a tragic villain with the same name, Lucas Ciffer.

Lucas Ciffer was supposed to be the Holy Kingdom's successor to the throne, but his demonic appearance and the powers he possessed terrified the entire kingdom. A white-haired boy with red eyes and pale skin, together with his dark powers, got persecuted and exiled by his own family. Not to mention that in the future he was destined to die by the hand of the hero.

Lucas fell from holiness, and, with the serial killer's bloodlust and knowledge of the future, he decided to prove the world right.

Yes. I could be a villain; no, in fact, I WILL BE THE VILLAIN.

Lyle Walt is a young noble boy and heir looking forward to the day he can inherit his family’s territory. Except around when he was 10 year old, his parents started neglecting him more and more in favour of his little sister, Celes.
On his fifteenth birthday, he is challenged to a duel by his sister to see who will inherit the household and horribly loses, being cast out of his family. Afterwards, he gets treated by the family groundskeepers and receives the family heirloom Gem from him that Lyle’s grandfather had entrusted to him. From there, he begins an aimless journey with his childhood friend and former fiancée, Novem, and the Gem-turned-Jewel that houses the memories, personalities, and Skills of seven of his ancestors.