Naruto: Reincarnated as Sasuke Uchiha with Perfect Talents. - Chapter 547: The Power of Uchiha

Cassian Ven Dyke, the bastard son of a powerful ducal family, grew up in the slums of Veldora under the care of his father figure, sword master Russel. When Russel passed away, Cassian was left with only a silver necklace as his inheritance. After putting it on, Cassian was attacked by three psychotic thugs who tortured him in an attempt to steal the necklace. Refusing to give in, Cassian was ultimately stabbed through the heart with the very same necklace. Instead of dying, he mysteriously vanished as the necklace lodged itself in his heart. Just before disappearing, he heard an eerie message echo in his mind:[True mana detected. Origin: Human...][Human detected. Compatibility with system: Confirmed.]

Chi Yan had always had a weak constitution, and ghosts had always tried to kill him. He had tried many ways to change his situation, but it was all futile.

Coincidentally, Third Master Ye of Shiming City passed away, and a priest informed Chi Yan that Third Master Ye possessed the “look of demon,” Carrying a bit of this man’s ashes and installing an altar for him at home could help control the evil spirits around Chi Yan.

Left with no choice, Chi Yan took a gamble. Amazingly, it worked. However he didn’t expect that he’d be instead be haunted by the most persistent ghost of them all.

Obsessed with love, undying resentment, possessed by evil.

- Description from Novelupdates

The third young master of the Gu household, Gu Ye, had a wooden personality, a stuttering speech, couldn’t remember an answer after being told ten times, didn’t dare to protest after being bullied, was considered the shame of high society. His father, in a fit of anger, sent him back to the old home in the country for the new year. But unexpectedly, he came back like a new person, in half a year testing into the top university of the capital with the highest score in the whole school.

Ludwig Heart, the heir to a vast fortune and a life of luxury, craves only one thing: freedom from his gilded cage. But when a plane crash catapults him into a world of magic and danger, he awakens not as the hero he dreamed of, but as a victim in a twisted ritual. Trapped between the ambitions of dark necromancers and the wrath of vengeful gods, Ludwig must navigate a deadly new reality where his life is no longer his own. Stripped of privilege and resurrected as an undead pawn, Ludwig’s fight for survival will determine whether he reclaims his destiny—or becomes a mere footnote in a world of shadows and deceit.