Keith was a salaryman working at a dead-end work for many years as his life was nothing, but downhill as his bosses and co-workers treated him like garbage.
He had been a bootlicking corporate stooge, one who clocked in but never really got to clock out. He'd worked his ass off and swallowed all sorts of indignities for all to eventually work his way up the ladder and live with a modicum of authority and comfort. But his cheap bosses were so greedy that they didn't bother to hire someone to fix the rundown building as out of nowhere the elevator he'd been riding had its cables snap, sending him on a twenty-story fall.
The last thing he remembered was weightlessness, a loud crash, and pure darkness.
Then more darkness and weightlessness until he was introduced to a pair of goddesses floating in front of him.
???: "Do not avert your gaze, mortal! We have seen your desires!"
After a moment he asked the goddesses.
Keith: "Is this a goddamn isekai? Did I die?"
The golden-eyed goddess snorted.
Carnachias: "So you've already figured out, huh?"
Melanoche: "I am Melanochea and this is my sister Carnachias, we are the goddess of darkness and chaos, since you know-"
Carnachias: "Yeah yeah. Seems it'll be easier for both of us if I explain. Yeah, you died. That elevator you were in crashed. But we sensed all your dark horny fantasies and needed an OP otherworlder to sick on the world that worshipped the goddess of Light. So we'll turn you into whatever monster you want, and let you loose onto the world and do whatever you want like fucking women and conquering kingdoms as our dark champion. Sound good?"
Carnachias didn't even wait for a response, seeing the gears turning and the slowly forming malicious smile on his face.
He had worked so hard to be someone important, but everyone treated him like he was worthless and unimportant as even his boss paid him less than his other co-workers, but now he could be someone!
Keith: Yes, I do!
With that, Carnachias went into the explanation of how this would work. What races were available?
Race:
[Goblin] [Slime] [Undead] [Devil]
He will not pick goblin or slime because they are known to be the weakest race, goblins are physically weak and not intelligent, and slime has a visible core in her slime body that if destroyed will die. Undead are out too, since most undead creatures are slow and they have a weakness to light, fire, holy magic, and even healing magic or items that can harm and kill them. The best choice is Devil, since the only weaknesses are light and holy magic and have a boost to demonic and dark magic as he had chosen the devil race.
Perks:
[Creature of the Black Night]
The power of darkness flows through your veins alight, granting you a 100% increase in your spell's power, and a 500% boost to dark spells.
[Demon's Eye]
Allows you to see the Race, Class, and status of anything alive as long as you're staring at it. It can pierce magical concealment and allow you to see important moments of their past and what they think of you.
[Corruption Seed]
Your sperm is filled with dark and demonic energy that could corrupt the mind of the target, the more a target comes in contact or is 'filled' with your seed, the more addicted to it and the more corrupt they become.
Next, it was classes as each class gave an increase in stats, there are six available right now.
Classes:
[Knight] [Barbarin] [Assassin] [Sorcerer[Preist] [Ranger]
Knight are defensive melee fighters, with the ability to buff their allies through moral raising shouts and the ability to taunt an enemy forcing their attack to focus on you. Barbarin are offensive melee fighters, with the ability to call upon the ancient spirit to enhance their powers. Assassins are a versatile class, apt at range and melee with a focus on stealth and quick kills. Sorcerers are offensive magic users, but can craft potions with a multitude of effects also they start with the ability to use fire, water, earth, and wing magic as well as offensive spells such as elemental bullets and lances. Priest are defensive magic users, focused on healing their allies and themselves, but they do have some offensive capabilities with access to Dark and Light magic, healing magic, and a powerful but slow elemental smite spell. Rangers are a class that grows in power with knowledge of their opponents and the land, also they can debuff the defense of races if they know said race and can buff their physical attack and speed too.
Fortunately for Keith, Carnachias had explained that he is allowed to have two classes since monster races level up slower than non-monster races and the devil can have two classes, so he had picked assassin and sorcerer to have some versatility and offensive spells.
Classes: Assassin and Sorcerer
Spells and Abilities:
Abilities: Assassin (Can become shrouded in magical shadow for an hour, rendering your movements silent and granting a minute-long butt to physical strength, doubling it. Can concoct lethal toxins, to apply to weapons or claws.)
Abilities: Sorcerer (You can use Fire, Water, Earth, and Wind Magic, low-level offensive spells (Such as elemental bullets and lances), and low-level potions. Including explosives)
Then, the goddess offers special boons that will improve his goals as he can only choose two of them.
Status Effects:
(Immune to paralysis, poison, petrification, and other hazardous non-direct effects, ability to inflict the same effects on others. Spells that transform humans into fleshlights and mind control too, but the target must be weakened or weaker than you.)
Domain:
(Pocket dimension, sized 100km squared. Can bring others by opening a portal or touching targets while teleporting, one minute cast time.)
Second Chance:
(Gain a second life from the grasp of death, when you come back to life, your health and mana will be fully restored and gain temporary invincibility for five seconds. The cooldown is once per week.)
Divine Protection:
(Gain immunity from mind control, unwilling transform, soul manipulation, and instant death spells.)
After looking at all of the boons, he decided to pick Domain and Status Effects. He picks Domain, so he can have his own place and the Status Effect has some immunity to effects and gains the mind control skills.
With that done, Carnachias went on to explain that among the races of the world, like humans, elves, demi-humans, dwarves, angels, demons, and many others race.
With that in mind, he knew what his new name would be.
Keith: "Call me Demon King Keith, the future ruler of that world."
Carnachias' golden eyes glimmered with a mix of amusement and arousal.
Carnachias: "I haven't been this excited about a Demon King since my old fave Dan!"
Melanoche: As long as you causing chaos. That current Demon King hasn't paid us proper respect, so dethrone her and give her a lesson in submission."
So the goal was to fuck women, conquer kingdoms, fuck the current Demon King, take the throne of Demon King, and wipe out the heroes. Simple.
After that, he was sent to the world as the dark champion of the dark goddesses.
Keith
(Devil) Monster LV: 1 (0/1000 EXP)
Assassin: LV - 1: (0/1000 EXP)
Sorcerer: LV - 1: (0/1000 EXP)
Health: 50/50
Mana: 100/100
VIT: 5
STR: 5
AGI: 10
INT: 10
WIS: 10
LUCK: 10
Skills and Abilities:
Silent Movement: (Can become shrouded in magical shadow for an hour, rendering your movements silent and granting a minute-long butt to physical strength, doubling it.)
Concoct Toxins (Can concoct lethal toxins, to apply to weapons or claws.)
Domain (Pocket dimension, sized 100km squared. Can bring others by opening a portal or touching targets while teleporting, one minute cast time. Also, have full control inside of the domain.)
Status Effects (Immune to paralysis, poison, petrification, and other hazardous non-direct effects, ability to inflict the same effects on others. Spells that transform humans into fleshlights and mind control too, but the target must be weakened or weaker than you..)
Spells:
Elemental Bullet: Fire a small elemental projectile at your target. (fire, water, earth, wind) MP Cost: 5
Elemental Lance: create an lance of made elements and launch it at your target (fire, water, earth, wind) MP: Cost: 10