*Knock Knock knock*

--I'm Souji~ Kaicho-dono~

--You may come in.

Upon receiving pardon from one of the bespectacled beauties, I entered the student council.

--Where is Saji?

--In one of the corridors~ I should be here in a few minutes~ but let's get to the point Sona Sitri-sama~

I walked in front of Sona's desk and pulled a chair out of my shadow, stunning the council members.

--Straight to the point...huh?

--Today I had a somewhat uncomfortable day for my Sitri-sama~ so please let's get down to business~

--Okay, Souji-kun~

Sona adjusted her glasses and pulled out a long, sprawling contract next to a chess piece, a bright red rook with gold brocade.

--Tower contract?

--Indeed...

Take the extensive contract of more than 52 pages all engraved with magical symbols and unknown runes, as well as the content of the contract, it was really extensive and well I am one of the people who like to read what they sign.

--This is the famous “Deal Whit The Devil”...I imagined it simpler~

--You are a case, quite special and I am covering all the possible contingencies.

--I see...

I smiled and took the long text and proceeded to read it.

***

Ten minutes later, Saji came running into the student council room panting.

--Kaicho, Hyoudou Souji, disappeared...

--Hello~ Saji~

I greeted the ashen blond as he finished reading the contract, it really was a good deal, full medical insurance, a stupidly juicy salary, bonuses and bonuses for a myriad of reasons and a section of underworld territory on top of the retirement plans and furloughs. for maternity and paternity, really a social and friendly contract... the only mishap or doubt I had was about clause 92-B and 92-C.

--Sitri-sama... Regarding clause 92-B and 92-C?

--I can't do anything with it, it's insurance in case everything goes wrong...

--Are you serious?... Clause 92-B... The Undersigned will be at the disposal and care of Leviathan Serafall and Sitri Sona in any instance that they require, under the case that he does not become a demon, the next one is presented. Clause 92-C In the case of not being able to reincarnate as a demon, the Undersigned will enter a section as a contractor magician associated with the Sitri family under the supervision of Leviathan Serafall and Sitri Sona, under the mutual agreement of both parties, he will be treated with the same benefits present in the above, only that the signer will continue to be human until a way to remedy it is found... Basically I will be his slave whether or not I become a demon and I don't know who that "Serafall Leviathan" is.

I growled in dissatisfaction as the shadows throughout the room trembled and writhed as if they were living creatures, bringing the scent of fear and terror to everyone's faces.

--You shouldn't worry Souji-san, Serafall Leviathan is my older sister and one of the Four Great Maous of the underworld, your case is special and we had to take some special care, I don't want a piece of your caliber to slip through my fingers. .

Sona remained calm although her beautiful purple eyes showed some fear but she was still full of expectation.

--Layaway system?

I asked as I put the thick contract on the table and took out a packet of cookies from my shadow, I really need my dose of happiness after reading all that crap.

--Basically.

The demon replied calmly.

Unauthorized tale usage: if you spot this story on Amazon, report the violation.

--Change the part of "At the disposal of" and I will sign... I like the idea of working with you Sitri-sama but I do not accept being a slave... a golden cage is still a cage.

--Do you want to join my peerage but not subordinate yourself?

Sona asked adjusting her glasses making an intimidating pose, I laughed.

--Rating Game~

Everyone present was surprised, they didn't think that a "Human" like me knew the term.

--The war games of demons, a magical and violent chess, where power, wisdom and cunning is everything... Although it is hard for you to believe, I know a little of your Sitri-sama society, if I become a Serious devil of low class, eventually middle class and at the end of high class, at this point I could open my own peerage and start an independent path as part of the Sitri faction, a division but not a subordinate, I could also challenge kill some heir for his family and take what is his...

The shadows in the room rose up into countless horrible and terrifying monster silhouettes, as well as countless weapons, a vision of hell, the council members raised their weapons and pointed at me, while Sona Sitri continued her business smile. and her eyes full of desire.

--Souji-san... I take it you don't recognize me as a competent Mistress?

--If you were competent~ Iseei and his bald and four-eyed friend would have been homeless for a long time~ According to the rules of the academy that trio would be more than expelled~ Kaicho-chan~

I mocked, I am no longer the friendly Souji who looks for a way to have fun and die, now I am that "guy" who enjoys violence and hunting, the one who participates in clandestine fights, the one who devours the shadows of the city, the one who who experiments with corpses and warm bodies, the one who crawls in the dark and enjoys the pain of others, that is who is speaking now.

--Will driving out your brother and your friends make me worthy of serving in your eyes... Hyoudou Souji ?

Sona huffed angrily, she doesn't like being ridiculed, sorry I can spend three hours fucking with your patience and continue.

--Too late~ that ship has already sailed~ You will change the contract under my terms and conditions, I can see that you wish for power, power to achieve your dreams and power to surpass the exuberant redhead of Gremory~ by the way the redhead reincarnated my fool brother as his pawn with 8 pieces, I guess the idiot has potential~

The information bombs fell and the heads of more than one of those present were blown off.

--Impossible!... Hyoudou Iseei, that pervert is worth 8 pieces?

Saji blurted out doubtfully to which I just smiled while happily munching on my cookies.

--I enjoyed the death and rebirth of the idiot with my own eyes~ by the way~ recognize this~

I pulled out the severed head of one of the stray demons stored in my shadow.

Several girls yelled, while Sona and Tsubaki looked at me seriously.

--Street Demon... You... are you the one who was hunting them?

--Right~ I'm a human who hunts demons for fun~ although I only started a few days ago~ they're easy to gank and gut~

I laughed as Tsubaki frowned and Sona fell into great contemplation, Saji and the rest of the student council just looked at me in fear while holding their weapons towards me.

After a minute of awkward silence, Sona spoke again with a determined and commanding tone.

--I will change the contract, but whether or not you become a devil, you will be "MY" tower.

--Hahahaha~ I think it's perfect.

***

The contract changed substantially, about thirty clauses of the slavery type were eliminated and new ones were written, in the end my position would be that of a kind of free agent or adviser to the Sitri family, I would still be subject to one or another whim that I may have Leviathan Serafall-sama's Final Boss level existence and some requests from Sona, other than that it was free, all benefits with few demerits.

--Sign here and place a drop of your blood here.

I pronounce Sona with eyes full of happiness. For my part I was also happy since I could hunt more openly from now on and get paid for it.

I have something better.

A shadow stabbed my hand and it proceeded to sign the contract with blood, everyone stopped when they saw me calm before the wound.

--Do you really feel no pain?

asked a little girl with pigtails I don't remember her name but according to what Sona said she is one of the pawns along with Saji.

--My sense of pain is a bit off...

I lifted my arm sleeve and pierced it with multiple shadow spikes splattering blood on the girl's face making her scream.

--KYAAAAAAAAAAAAAA!

--Hahahaha~ they're too soft to be a devil~

I laughed out loud but stopped when Sona handed me a reddish tower piece with gold brocade.

--This is a very special Rook piece with the value of ten Rooks... I hope it works.

--Likewise.

I take the piece and place it on my chest. A light blue magic circle covered my body, blinding everyone present for an instant.

Rook's piece merged with my body, I felt myself becoming stronger, more resistant, heavier, the meter in my mind also went up fast, stopping just a few small spaces from the end, bothering me a bit but nothing more.

After the flash, everything was the same except for a dim light on my chest, taking off my jacket and shirt, a mark in the shape of a Tower.

--It seems I failed...Souji-kun...I can feel the bond between us as Master and Servant but you still feel like a...Human?

--50/50~ Huh?

--A strange middle ground.

Sona and I smiled, this situation was already included in the contract and he only professed that in the event of the indetermination of the species, he would be part of the nobility of Sona Sitri with all the benefits and obligations that this implies, but he would not be under his complete orders, again I would be a free agent mainly associated with Sona Sitri and in case the Gremory or Serafall herself want to request my services, they should go through Sona first, I am basically a Player and she is my manager.

--It is a pleasure to work with you Sitri Sona-sama.

I smiled before kneeling down and kissing the back of his hand.

--Rook, Hyoudou Souji bows to you.

Sona blushed slightly at my cheeky act but I was being honest which brought a beautiful smile to her face.

--Of the order and the heads of the enemy will be at your feet.

--I have received your sentiments, My Rook Hyoudou Souji... Will you bring victory to our cause?

--Victory will always be in your hands, My Lady.

Thus the Next Head of the Sitri Family obtained the Strongest Tower in History.