NTR : Next Reincarnated - Chapter 7: Ch - Manga Reboot

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.

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.

He kept her by his side, never letting go! “Please, can you let me go?” “Impossible,” he said, “unless you're no longer my only one.” After they fell in love, he declared possessively, “I want to keep you by my side, to make you belong only to me. You can only love me too, your mind, your world, must be filled with only me.” Yet his domineering love sent a chill through her.

After a brutal attack leaves him for dead, Alex awakens in a new world unlike any he has ever known. Reborn into a prestigious family, he is thrust into a realm where power defines worth, and ancient secrets lie hidden beneath layers of intrigue.Determined to seize this second chance, Alex must navigate dangerous family rivalries, uncover the truth about the enigmatic woman who saved him, and master the powers now at his disposal. As he delves deeper into mysteries, he finds himself at the center of a growing conflict—one that could shape the fate of this world and his place within it.Will Alex rise to the challenge and rewrite his destiny, or will the forces against him ensure his downfall once again?