Demon Sword Maiden - Chapter 66Book 12: : Ten Thousand-Meter Sword Beam

Li Yi accidentally obtained a black science and technology library, which contains countless books of the inheritance of high-tech civilization and records countless knowledge.

There are thousands of bells in the book, there is a golden house in the book, there are many horses in the book, and there are Yan Ruyu in the book.

Li Yi has completely turned into a bookworm, learning all kinds of knowledge from the library, grand unified theory, particle Tebo theory, …, acquiring various black technologies, superconducting materials, super batteries, intelligent algorithms, … .

- Description from novelbuddy

The hero who was killed by the demon king ended up reincarnated as the son of the one who killed him! Thus began the life of the hero who donned in the mask of the ideal demon prince to topple his own kingdom while doing his best to prevent anyone from discovering his identity―― But to do that and blend into the demon tribe society, he had to kill his former comrades. Nevertheless, to become stronger, to save humanity, he had to walk through all kinds of paths of carnage! This is the tale of the demon race’s fake prince destroying his own kingdom.

O Hero, Trample Those Who You Should Protect!

TN: Most part of the other character in the novel is depicted from a non-human perspective so expect something that is completely different from the common sense of human.

There wasn't much to be said about the life of Akhil—at the age of 8, he lost his father at the hands of his most trusted business partner, who was also on his way to becoming the world's richest businessman.This left Akhil with no option but to use that traitor's daughters as a means to kill that man—a rather typical story where the main character takes revenge on his father's killer by making both of killer's daughters yandere.Of course, this wasn't a random fantasy story where he could just reach someone like the world's richest man—sitting at the highest point of the hierarchy—so the most he could do was act as the kind child he once was to those girls and slowly build trust and obsession, which finally bore fruit, and Akhil died.Indeed, how could he even be able to kill a man who possessed that amount of wealth?So, he died in front of both of those women—making sure that they saw him bloodied and dead.....The End.Or at least this was what should have happened.DING![ SUPREME YANDERE SYSTEM —Tada!! ]He opened his eyes inside the body of the Emperor of a ruined kingdom at the edge of the Human Zone—a group of three continents where humans lived while under constant attack from the threat of the 7 Demon Gods—and found himself in a sick body.A kingdom that was nearly collapsing due to corruption, the presence of holy light bearers—Heroes and Heroines—and a world filled with artifacts and fragments scattered around the bloodline—he who needed to lift the whole kingdom up again, hold the reign of a broken kingdom, and move forward.Now born as King Lysanderic Aleria Vandreat, he has only the support of his Supreme Yandere System.Oh, he awakened it too, but when did he?Read the Story...[: The main character is cruel, and there will be darkness in his actions, so enjoy the light in the first ten chapters (those are before he was reborn) and smile as you see the comedy and slight introductions to the characters. ][ Suggestion: If you don't like to know about Main character background, then skip starting 10 chapters. (Yes, the previous chapters are a prologue (not boring ones as they are important for understanding the main character and his future artifacts. Ahem.) ]

“Rishe Ilmgard Wertsner! I’m breaking off my engagement with you!” “Okay, I understand.” “Huh.” The Duke’s daughter, Rishe left the evening party without delay. In fact, for Rishe, this engagement has been terminated for the seventh time. That’s where her new life starts, after having enjoyed the way of life of a pharmacist and a dressed up knight, she lost her life at the age of 20 and has gone back to the scene where her engagement was broken off. Normally, this could have broken Rishe’s heart, but her mentality became strong. Her past six lives have been busy and fulfilling, she wants to live longer this time around. If possible, she wants to live a life of leisure and squander money… To commence her 7th life, Rishe has set up such a diagonal goal. However, in this life, she will be married to the Crown Prince of a militant nation, who killed her in her past life. …It’s probably better. It doesn’t matter if it’s a former rival country. In her seventh lifetime, she’ll enjoy loafing off at a castle!! Against all her determination, she inadvertently demonstrated the skills she had cultivated in her past lives and garnered attention as a brilliant Crown Princess.