Sin System: Demonic Harem After Reincarnation - Chapter 17

QiLeren had just cleared the bad ending of «The Nightmare Games» when his laptop died well before its time. His luck seemed to follow him as he was transported, along with the other passengers, to a hospital following an accident between his bus and a truck. Upon waking in a transfusion hall rather than a ward, QiLeren felt a familiar sense of dread as he took in the hospital that held no trace of other people…

Book 1 of a Trilogy

- Description from Novelupdates

An Apocalypse descends—as a lethal super-virus wipes out most of the human population. It took less than a day for the world to change forever—bringing mankind to its knees.It’s a time of misery and death for most, however, there are some who are lucky. Zane Graves, who came across a “Blood Crystal” is given an ability: [Dead Man Walking]—which grants him a special power, and so setting him off on his path to the top!

Pei Qin, upon transmigration, was instantaneously drenched in a basin of misery.The Scholar father was murdered on his way to the exams, and eldest uncle Jian Shen had two households.There was a son from the second wife, but neither grandparents nor villagers liked him, and he was also a thorn in the side of eldest aunt.Valuing sons over daughters, they wanted to sell her to buy land.Malnourished and poorly clad, her mother and siblings toiled like beasts of burden.Before she could strive for a better life, that already deceased Scholar father came back to life.He'd married a rich man's daughter? Sired two sons?Life was so hard, yet it drove his wife to her death.Pei Qin looked at her emaciated younger siblings, her hands trembling: To the mountains!!————————Lived in caves, built a hut, ate wild vegetables, gathered wild fruits.In poverty-stricken days, Pei Qin led her siblings to quietly amass wealth and silently prosper.Just as they were about to thrive, another wave of misfortune was thrown their way!Pei Qin with hands on hips: If you want to play the scoundrel, I'll make sure you're reduced to nothing!********************

Gilderoy Lockhart has just become Minister for Magic of the United Kingdom, and there are several uninvited guests in the office.

Dumbledore: “Minister, I have to tell you with great sadness that Moriarty Slytherin is the most hidden person in the European wizarding world!”

Lovegood, editor-in-chief of The Quibbler: “Look Minister, the Hogwarts Riots, the Himalayan Avalanche, the Gringotts Heist, the World Cup Opening, the Nurmengard Bombing, the Azkaban Defection , the Durmstrang riot, these mysteries all point to one person, Moriarty Slytherin!”

Platinum noble Lucius: “On behalf of the pure blood family, I strongly request the minister to launch a wanted request for Moriarty Slytherin! Oh, my minister, don’t look at me with greedy eyes, all pure blood money is taken by Mori Artie’s gone.”

Gilderoy Lockhart showed his signature smile: “Please allow me to introduce to you my young master, the greatest wizard of all time, the master of dawn and darkness, the master of ice and thunder, the legendary god of magic, Moriarty Slytherin!”

This is the story of a little wizard who only has magic in his heart and becomes the big boss behind the scenes in the Harry Potter world.

- Description from novelbuddy