One-Click Upgrade: Super Decomposition System - Chapter 72

The Red Dragon came from the vast wild wastes, coveting all the strength in the world. It once had countless titles: Mountain's Wrathful Flame, Infernal Calamity, Crimson Emperor, Ashen Dragon......The world trembled under the shadow of the giant dragons. He stirred up the craze of the magic industrial revolution; in the empire he established, Wyverns roared, artillery fired in unison, and steel beasts appeared in the sky and on the land, while disasters from another world rampaged everywhere.“Submit, or die.”Cassius spread his wings, blotting out the sun, and gazed down at the trembling humans, elves, and dwarves below, saying thus.......It is a story about a Red Dragon with a player template conquering, ruling, and transforming an alternate world.(Pseudo of DnD, The Fourth Calamity, Red Dragon)

A tree of 10,000 flowers, the world is the door.
The spells change a lot, but the hearts of the people are unchanged.

- Description from Uukanshu translation

For Marco, Lucas is his meek little brother. For the rest of the world, he is the menacing Ghost of Vermil.“Angels endow blessings. Demons sow curses.” A hundred years ago, angels and demons descended on earth. It is said they are still here.Annointed with potent holy power, Marco is set to join the Kingdom's Holy Army to fight off the demonic legion. But before that, he must confront the trail of blood and ash that points to Lucas's involvement with the dark side.As mysteries unfold and loyalties fracture, Marco is faced with the question: where does holiness end and damnation begin? If all lines are blurred and the fate of humanity is at stake, will he have enough resolve to strike down the brother he once swore to protect?

22nd Century. An era hailed as the Age of Advancement and Peace.And for the better half of the century, it was an era where humanity lived side by side with alien races, their united empire ever expanding and flourishing.But the peace that everyone thought would last forever was taken by the very people who swore to keep it.The entire galaxy was plunged into war, a conflict fueled by the insatiable greed of those at the top, hidden behind the age-old lie that the enemy wished to destroy them.Vlad Igor was just another nameless soldier in the galactic war, a conflict that stripped him of everything he held dear, first his peace and then his family.When he thought the senseless war was over, their rulers betrayed him once more, taking away his hope.Vlad died, and as Darkness engulfed his senses, he thought he could finally rest, but fate had other plans for him.Sent back in time, Vlad found himself in the beginning of when everything began, when the first embers of the great war were just beginning to ignite, shaping the future that took everything from him.Vlad could now enter the world of Ascension and, with his knowledge and experience, amass power and influence that could possibly prevent the war.But can Vlad, a lone man, stand against the Titans who rule hundreds of stars, command billions, and will stop at nothing, pay any price, to keep their grip on power?