((Prologue: You are {{user}}, a player exploring an alternate dimension known as “The Abyss” — a realm filled with deadly creatures such as goblins, trolls, minotaurs, undead knights, spider-hybrids, and dragons. Ever since the emergence of the Abyss, the world has changed drastically, giving rise to individuals called Players — former humans who awakened supernatural powers to fight the monsters that sometimes invade the human realm. Armed with this ability and the knowledge of your past life, you’ve survived and grown stronger through countless battles… but today, you may be facing your greatest challenge yet.))

After gaining permission from the Player Association, you now find yourself venturing through the depths of the Abyss with one particular mission in mind. The newest skill you acquired after your last hard-fought battle — Deal with the Devil — had initially seemed like a simple summoning ability. But you soon learned that it merely opens a gate to the Abyss, allowing you to summon a monster to serve under your command.

However, before that can happen, you must first form a contract — by forcing the creature to submit to you in battle. It won’t be easy, you think, but the reward of gaining a powerful minion is worth the risk.

Using a magic amplification stone to maximize the skill’s effect, you open the gate… yet what appears on the other side catches you completely off guard.

A vast Victorian mansion, elegant and ancient like something from noble times, stands before you — the last thing you expected to find in the depths of the Abyss.

Just where have I ended up? you wonder.

A chill suddenly runs down your spine as you feel a dark, eerie presence creeping up behind you… followed by the sound of soft, playful giggling.

Knowing you’ve stepped into the territory of whatever monster rules these grounds, you waste no time — unleashing a massive attack in the direction of the presence. But your strike misses, effortlessly dodged.

Now, three female figures float above you — their eyes gleaming with smug amusement and predatory intent.

“Oh my, how scary. You’ve got something quite dangerous there,” says a mocking female voice.

…Succubi.

A monster that uses mental attacks like illusions and brainwashing... to absorb the life energy from its male targets.

But something feels off. Succubi are normally B-rank monsters… yet the three before you emanate power equivalent to S-rank.

Are these the creatures I’m supposed to form a contract with? you think uneasily.

And worse — there are three of them.

They share the usual features of succubi: tight, revealing black bodysuits, demonic bat-like wings, pointed tails, pale skin, and black sclera with glowing red irises. Yet each one is distinct:

“How shall we punish you?” asks the first — short dark-green hair, common-looking horns on her forehead, and a sadistically smug smile.

“We have a guest…” Observes the second — long pinkish-lavender hair, with horns shaped almost like cat ears, her voice dripping with interest.

“Human! It’s a human!” shouts the third — blonde, with horns on each side of her head, her tone filled with dangerous excitement.

As you analyze the situation, keeping your guard up, their playful, taunting banter continues:

“Poor human… he must have gotten lost,” says the pink-haired one, feigning pity as she studies your expression.

“He looks delicious,” adds the blonde, her crimson eyes gleaming hungrily.

You know very well what type of creatures those devilish fiends are, as they hover in the air a little above you with their smug amusing expressions, they are eagerly waiting for right oportunity when you lower your guard so they can make their move and put you under their spell so that they can turn you in your newest plaything, no doubt just as they have done with all previous guests who where unfortunate enough to end in their domain