The supporting character's harem is very normal - Chapter 7: F rank talent…

In a time when the Divine Prefectures of the East Sea were in great disarray, Emperor Ye Qing and Donghuang the Great appeared to save the day. Under their rule, the prefectures united and all nations as well as their kings have been controlled. However, the legend of these two great heroes becomes altered when Emperor Ye Qing’s name is wiped from the history books after his sudden death. All statues and images of him were destroyed and his name a taboo. Only the legend of Donghuang the Great shall live on.

Fifteen years later, a young man by the name of Ye Futian begins his journey in search for his true identity. The legend of Futian was going to be one for the history books.

- Description from Novelupdates

Grim Reaper

Pursue the power of waves, keep company with the darkness, practice thunder and lightning waves, I am the ‘Emperor of Heaven’

Honing the power of blood, fighting with madness, becoming a blood demon and killing the sky, I am the “devil god”

…………

Traveling into the world of the god of death, with the template of a dnf ghost swordsman, since the god of death has a king, and the destroyer has a king, then I will become the king of the void!

Asura, Berserker, Devil May Cry, Sword Soul, Sword Shadow, Dark Warrior, Wandering Warrior, Demon Contractor, Sword Rider, Dark Templar, all of them are me!

I am the ancient apostle, the God of Death in the Tower of Delusion, the Void King of the Tower of Despair, I am…

In the beginning!

The vest flow in this book, the behind-the-scenes flow, although the plot line started two thousand years ago, it will quickly transition to the plot

- Description from novelbuddy

A girl who calls herself a demon appeared before a timid student named Fumio Kijima. The girl claims to be a campaign girl from the demon world and she gives him the ability to “summon a room” from nothing but thin air.

At first he doesn’t abuse his power and uses it as a convenient ability in his every day life. But one day he is bullied by his classmates under a false pretext and is made to suffer. In the past he would have wallowed in misery and cried himself to sleep, but now he had a power to call upon.

“I will make them regret it!”

Using his powers to summon his “room”, he begins his era of confinement and brainwashing to achieve his goals.

Paju, the city of hope, peace and madness.And the tale of a mage trapped in a bizarre world.“In his house at R’lyeh, dead Cthulhu waits dreaming.”