My World Traveling System: The Harbinger of Death

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The war of epic proportions just began, as the enormous quantities of plant monsters continued to grow bigger and bigger, spreading across the entirety of the world constantly and without even waiting for a single second, they continued to grow bigger in numbers until they started to ultimately attempt to take over everything, but the Undead emerged by the grace of Hades and Frank! Frank wouldn't had been able to summons o many Undead by himself, however, as his mind power has a limit even as a god, but thanks to Hades, this limit was able to be broken and Hades conjured more and more Undead, summoning an army of new and powerful unliving soldiers.

Titanic Skeleton Chimeras made of the bones of dragons and other enormous beasts, Giant Zombies crossing over 30 meters of height covered by rotten flesh that unleashed a deadly smoke of poison and curses, Phantasmal Legions, enormous phantoms composed of thousands of souls mixed together, Abyssal Vampiric Ghouls, blood-drinking zombies that had become similar to Vampires in both appearance and blood-manipulating powers, lethal and elegant, Aberrations of the Nether, giant masses of black miasmic death with countless green and yellow eyes spread over their bodies resembling slimes, and more lethal and monstrous beasts that had been summoned from the depths of Frank's and Hades imagination!

The giant Undead were being led by Nezhit and Zero, as Yurei and Vritra were not present and Frank didn't wanted to bother those two. Nezhit and Zero greeted their master happily, as they had once more evolved and became larger and more sinister while also looking even cooler. Nezhit was now almost a giant at four meters of height, mounting a eight-limbed skeleton horse with three heads covered in black armor from head to toe, Nezhit raised two gigantic blades capable of slicing a mountain with ease, his body had become even more muscular than before, and he wore a helmet in the shape of a terrifying skull, with many horns atop and phantom flames decorating the top of the horns, he looked utterly deathly!

Frank thought about how Nezhit was brought to "life" back then, as he used to be a small gang of thieving adventurers that had attempted to rob Frank and his group when they went into their first adventure into the dungeon of Acacia Town. Frank ended fusing their corpses and souls into a single undead, an almost two-meter tall and muscular giant zombie man, which was Nezhit, Frank's first ever raised Undead!

He now had evolved and although he recalled his past selves, he had fully taken over his new persona as a servant of his master and a knight of death, he took pride on wearing his heavy black armor, and has been craving for war and adventure for a long time since the last time he fought in a big war, now it was the time to shine and show his master what he was made of.

And then there was Zero, Zero was wondrously beautiful today, but even more, she held a divine phantasmal beauty that made her look like the incarnation of a goddess of death herself. Her entire body was covered in a light and beautiful feminine, black-colored armor with countless skulls and bones decorations, alongside spikes all over her shoulders, her size had grown to three meters by now and she was officially a giantess by now, her ears were still pointy as she was once an elf, and her eyes were glowing with a bright and seductive red color. Her long hair had turned silvery-white and was as long that it reached her knees. She was now mounting a giant skeleton wyvern that was over 6 meters of height and was wearing black armor over its skeleton body, and she wore an arrow while the rest of her body was covered in belts with knives to use in case her phantasmal arrows and her bone bow were not enough.

Zero was a woman that used to serve an evil organization in Terra, she was a woman that was experimented on for magical research and was infused with many mana cores to give her different elements of magic, but this only ended in her growing expressionless and emotionless, becoming a puppet for her creators, she used to be an orphan girl that was kidnaped by these people and even though through countless torture-like experimentations done into her body, she remained with a kind heart deep down, and loved her all her siblings that were also being used as experiments, which she took care of and protected them from her masters. She was originally given the task of killing Frank, but she ended dying at the end, although after dying, she raised as an Undead and became Frank's second Undead, a woman with a cold personality and amazing assassination and magic techniques served as a great servant for Frank.

She continued to grow stronger over time and she even assembled her personal squadron of assassins composed by other Undead and even her rescued siblings from her captors, she became a figure of admiration by many Undead, if not all of them, and her beauty also captivated their hearts and even those of living people. She was revered as a goddess of death inside of Frank's divine realm, although in her leisure time, she likes to secretly practice cooking and doing "housewife things" for some reason unknown…

"Master, we are here to serve you once more, our powers had been upgraded, and I can sense the darkness of the abyss rushing through every vein of my corpse body." Said Nezhit.

"I also sense this darkness and miasma… but it is not dangerous, it is increasing our power… Is this how we suddenly evolved?" Wondered Zero.

"Yes, I have called you guys because we really need your help! Look!" Said Frank, pointing at the countless plants approaching at fast speed. Zero and Nezhit looked at one another in surprise, as they quickly decided to move forward and fight like the old times.

"Very well, leave it to us!" Said Nezhit.

"I shall splatter their bodies into the ground until nothing else is left standing." Said Zero.

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