Serpent and the two S-rank heroes is fighting against the group of Demonic Human who are undergoing a transformation.
"Tch, it seems that they already almost completely transform into a demon… and their power level is around those Mid-tier demons." Said Serpent annoyed.
-Beep
Instant Headshot take a look at his watch as he being protected by Hell Knight and Serpent, "Finally! Hey Serpent, it look like you can let loose now."
"Good, now you guys need to protect yourself." Said Serpent with a cold tone and a black smoke coming out of his skin.
'That smoke… its very dangerous, I can tell from its aura.' Thought Hell Knight and Instant Headshot as they get fairly far away from Serpent.
"Plague of Death" Said Serpent as the smoke fill in the area.
The demonic humans don't seem to think the smoke as a threat and let it touch them… but the moment the smoke touch its victim, the victim is rapidly dying yet the demonic nature that have been planted in their body allow them to resist and continue fighting.
"As expected, this bastards have one of the most annoying trait of demons… 'Undying' that make them will continue to survive by adapting to the attack at rapid rate and endless regenerating" Said Serpent as he put down the snake.
"If they were at least have a tiny bit of humanity's left, I will felt guilt but… they are no longer humans as they don't think nor feel pain, a mindless husk of beastly creatures…" Said Serpent dissapeared.
The snake then starting to transform and it starting to emit a blinding light… as the light dimmed, a giant white snake can be seen… a creatures that hold a power beyond any humans comprehension…
Jörmungadr.
The snake then is commanded by Serpent from far away, "Snake, destroy the monster. Don't give mercy."
Following the command Jörmungadr start to attacking the demonic human mercilessly but its too late the demonic human had evolved to a Mid-Tier Demons.
The demons then chant a spell to summon their master, a High-Tier Demon.
The spell is disrupted when Jörmungadr rushed and ate all of them, instantly killing them.
"It's easier than I expected…" Said Serpent suprised that the enemy is weaker than he expected.
'Hm? What's wrong, Snakey?' Thought Serpent telepathically to the Snake, 'You feel something weird in your stomach? Is it because of the demons…?'
"Spit them out, Snakey" Said Serpent to the Snake which it instantly follow.
The demons got out of the Jörmungadr mouth half melted but still alive and regenerating.
"It seems they managed to evolved into a High-Tier demons… what an annoying cockroaches, but this is good. We managed to gain information that this bastards master is not a High-Tier demon but a Higher existence like demon king or something…" Mutters Serpent as he come into conclusion.
'Demonic Humans are a C-Rank threat, Low-Tier Demon are a B-Rank threat, Mid-Tier Demon are an A-Rank threat, High-Tier are S-Rank and Demon King is SS-Rank or just Calamity as humans doesn't know there is something stronger than their S-rank heroes.'
"So… are you going to kill them?" Said a figure approaching, "Of course, Instant Headshot. Its just I want to end everything from the roots of the problem…" Said Serpent confidently.
At the same time, the demons finished to make a portal to Hell for their master, a humanoid figure appeared from the portal with a tall black horn and an evil looking wings.
"Is this earth? Pathetic" Said the figure with arrogant tone, 'Wait… who is that? What kind of being is this? Its emitting a godly powers but… it's still a mortal, is it perhaps a dragon? No, even though it has a high intelligence its still lacking compared to a newborn dragon and its very different from the dragon that I used to… it has no legs.'
"He appeared" Said Serpent, "So… when are you going to fight him?" Ask Instant Headshot.
"Hm? Ah, shit. It seemed that the zombie horde is getting closer to us." Said Serpent sensing the dead presence.
"Why are you so worried? Its just a zombie, we need to be more worried about those demonic bastards." Said Instant Headshot, "Alright, but where's Hell Knight?" Ask Serpent.
"That guy is called to other place to fight against a horde of undeads and few demonic humans…" Said Instant Headshot, "Oh, so this situation happen in other places too? This suck." Said Serpent.
"They can take care of a few demonic humans and a horde of rotting zombies, right?" Ask Serpent, "Well yeah, they can." Said Instant Headshot.
"Good, now I just need to focus destroying this bastard…" Said Serpent dissapeared, "Good luck!" Said Instant Headshot.
"Hm? What is th-!?" Said the figure interrupted by Serpent who suddenly appeared and smash the figure face then send him flying towards the nearest building, "So, its you who are the master of these annoying cockroaches? Hm? Don't tell me you are this weak? How can you be a master of cockroaches if you can't even survive a 'light' jab?" Said Serpent making fun of the figure.
"How… dare you…?" Said the figure with a face full of anger, "I The Demon King of Regeneration, AunDëth. How dare you make fun of me? Puny hum-…?" Said AunDëth silenced when he saw the "Human" who have the highest spiritual pressure he ever seen and he already saw many powerful entities.
"What? Cat got your tounge?" Said Serpent as he approaches slowly, "N-No! Get away from me! I promise to not bothering humans in this world again, so please let me live!" Said AunDëth pleading for his life while trembling in fear.
Serpent standing infront of AunDëth staring at him, "I thought that I can have fun… but all of you disappointed me, now begone!" Said Serpent as he unleashes [Plaguq of Death (SS)] on full power, instantly killing everyone around him except Jörmungadr who immune to it.
"F-Fuck… p-p-please end my misery…" Said AunDëth are constantly melting and regenerating, "So you survived? Heh, your regenerative ability is fucking broken… if you're not THIS weak. Well, I will end your suffering as you wanted…" Said Serpent as he kill him with anti-regenerative poison.
Every demonic humans heads suddenly explode the moment AunDëth lost his life, it's happening to every demonic humans that attacking the cities.
The zombies horde have no change as they have no relation with the demon king and continue to fight but they're just no more than threat rank F+.
Serpent activating Heist on all the corpse around him before dissapeared with Jörmungadr into thin air.
The Arch-Divine Organization is praised as they helped them to survive against Calamity and all newspapers is putting a headlines along the lines of "Arch-Divine Organization The Savior Of Humanity".