DxD - Multiverse: Daily Life Of The Sephiroth Hero - Chapter 36

Li De accidentally gets transported into a virtual game that won’t be released for another year. He becomes the vampire's progenitor, an ancient being hiding among humans to learn magic, and gains control of an ancient castle along with 200 bloodline descendants.Though he can still return to Earth temporarily, Li De faces a major challenge: in one year, the game’s public beta will begin, and players will enter the world. As a vampire, he must find a way to grow stronger and prepare his race to survive the impending arrival of these players, who could become a massive threat.This is the story of how a vampire progenitor and his descendants team up with humans to cultivate resources, master magic, and build a thriving community in order to withstand the coming storm.---Tags: Aristocracy, Brainwashing, Elves, Fantasy Creatures, Fantasy World, Game Elements, God Protagonist, Goddesses, Gods, Handsome Male Lead, Interdimensional Travel, Kingdom Building, Loyal Subordinates, Magic, Male Protagonist, Mind Control, Modern Day, Race Change, Shameless Protagonist, Slaves, Vampires, Mages.

In times of peril, the overlooked Ninth Prince, Qin Wudao, steps up to hold the collapsing empire together, commands the six armies, carries out the sealing ceremony, and establishes an era of abundant prosperity.“Ding, congratulations, the check-in system is now in place!”Once awakened, the world becomes aware, who does not recognize this sovereign?

King Grey has unrivaled strength, wealth, and prestige in a world governed by martial ability. However, solitude lingers closely behind those with great power. Beneath the glamorous exterior of a powerful king lurks the shell of man, devoid of purpose and will. 

Reincarnated into a new world filled with magic and monsters, the king has a second chance to relive his life. Correcting the mistakes of his past will not be his only challenge, however. Underneath the peace and prosperity of the new world is an undercurrent threatening to destroy everything he has worked for, questioning his role and reason for being born again. 

The aliens came with hostility.
Facing the invasion of aliens, human beings are weak like ants.
So this is the end, the real end.
But there is resistance when there is an invasion.
For some, this is not the end, it is war.
So this is war.
Real war!

- Description from Qidian