MTL - Harry Potter’s Book of Sin - ~ The dawn of "Hogwarts"

Chen Rui, an otaku from earth, is reborn into a human body in another world, who falls into the legendary evil, brutal world of the devil called Mozu where humans are treated as food. He has to survive while facing horrors of the devil, violent dragons and a variety of power enemies depending on a strange super system chip and his wits. Surrounded by Devil’s beauties such as black-bellied lolita princess, cold queens, violent dragons, charming poisonous devils …

SLASH!(So this is death?!!)I, Elysia, found myself dead before even reaching the Demon King's lair, and our Hero Party was completely annihilated.And this was done by none other than a fellow human—my former classmate.He had been mostly invisible during our time at the academy, but then he started committing one crime after another until he became a lackey of the Demon King.Who would have thought that the strongest party of humanity would be wiped out by humanity’s traitors?(If I could go back to the past, I swear I will kill you!)Just when I thought I could finally pass on, I opened my eyes.Five years back, when I first enrolled at Arcadia Academy.And there he was, the traitorous bastard of humanity...****“Huh? Where am I?”One day, I opened my eyes to find myself in an unfamiliar place and came to realize this was the world within the novel Savior's Dawn that I had read.Everything seemed to be proceeding the same as in the novel—except for one thing.The main heroine is glaring at me as though she wants to kill me.Could I survive with the main heroine after my life?

A dancer who was killed by a serial murderer found himself occupying the body and taking on the life of Brian Morse, a patient with anti-social personality disorder. As Brian, he has the look, he has the brain, he has the charisma, but he also has something that somehow always attracts psychopaths…[The story mentions 3 reality shows and crossovers with the American drama series Dexter. SLASH]

- Description from Novelupdates

(Non-system, multiple female MCs, both good and evil)Fang Ling, who possesses the Chaos Sacred Body, was fiercely fought over by various forces since his birth. His heart, right eye, and treasured bone were successively taken away...After many twists and turns, the critically ill Fang Ling was placed in front of an ancient temple by a kind-hearted person. No one knew that within this ancient temple, five unparalleled masters were in seclusion. They had been hiding there for tens of thousands of years, suppressing the Immortal Heart of the Demon Ancestor.When the Immortal Heart erupted, the five masters were unable to contain it and took a desperate risk by implanting it into the infant's body. The fusion of the incomplete Sacred Body and the Immortal Heart led to the birth of a peerless monster...