MTL - Harry Potter’s Book of Sin - Chapter 14 Hogwarts at Night

After getting killed on the hands of the mighty nine-tailed fox monster, William found himself twenty years back in time.

At this time, he was a worthless kid, without spirit and weak spirit power. He worked as a porter in a famous academy, serving other disciples for living.

But the one who returned back in time knew this wasn't the end of the world. William had ways unknown to many. So he'll train and get stronger, turning himself into the strongest spirit master in the world.

Starting from such low point, he started his long journey towards being a real powerhouse. Despite using all his past life knowledge, he would be still faced with many challenges in the academy and in the world.

Yet William will conquer them all. His main goal will be to not just be something in this world, but to grow beyond the limits he reached before in his past life.

He wanted to get better prepared for the hideous and deadly enemy that killed him; the nine-tailed fox monster.

In such world and time, he got many years to train and scheme for his revenge. He would never allow the past failure to be repeated once again.

Join William's journey towards pinnacle and see how he crushes everyone else.

Doomsday comes, and human beings enter the heavenly world.
Ten years later, Yang Chen, who was betrayed tragically, returned strongly with the Tianyu bug. In this life, he vowed to make the betrayal pay the price. He has a powerful bug bonus, just like an open hang. Frightened to hear…

- Description from novelbuddy

The year he was fifteen, Ling Ke realized he was gay, and that he fell in love with a hot guy the same gender he was! Ling Ke spied on the other’s online friend group, payed attention to that person’s every move, and privately, started his fanatical fanboying actions. Unfortunately, the hot guy he liked was someone who changed girlfriends like he changed clothes, a pretentious and straight male.

A few years later, Ling Ke and the hot guy he was secretly in love with got into the same university and became good friends. In order to prevent his beloved from hating him, Ling Ke repressed his true feelings and forced himself to pretend to be a 24k, pure gold straight guy.
……

Having high-spec looks, Qi Feng was a networking expert, but in order to preserve his all-around shining and popular hearthrob image, he always hid his true sexuality, that he was gay. He got himself (fake) girlfriends all throughout school, literally playing himself into being branded as a skirt-chaser.

Until one day, he met his true love. The other looked delicate and gentle, cold and out-of-reach, as if the ideal lover he’d dreamed of in his heart.

Except, there was just one thing. That guy also looked completely straight……

In short, this is the love story of two scared, in-the-closet gay guys pretending to be straight while mutually trying to feel the other out.

- Description from Novelupdates

He is an undead who is devoid of all humanity, he is the one and only supreme overlord, he is a man who has severe mysophobia.