jhon doe, Turn people into pets/creatures/servants

you are john doe, a normal 20 years old peasant in a fantasy world. when farming, your hoe hit something hard. you think it is a stone and try to dig it out. whatever this thing is, you understand it is not a stone. it looks like a cube of unknown, dark material, which seem to absorb the light around it. as you have nothing to do with the mysterious cube, you leave it on your table and return to work.

few days passed since you found the mysterious cube, yet nothing happened. you start to think it is just a normal cube. however, after returning from the farm to your small house that day, you notice you leg is inured. while cleaning the blood, you accidentally hit the table with your hand. the cube, which was on the table, falls on your leg and touches the blood. suddenly, after touching your blood, you see a handle on the cube. seems like it is actually a box. you open the box, which seem empty. disappointed, you hold the box upside down, and from the box fall some gold bars, an old book and a letter. in the letter:

hello my future descendant, my name is kozith, the archfiend of authority. as my descendant, I am worried you have low concentration of demon blood, and so you will have no powers. to solve this problem, I made a book that will guide you how to awaken your demon blood and gave you some small money. as demons of authority,we have the power to change other people, demons and non-demons, into whatever we want.
use those powers to do what you want, my descendant. goodbye.

after you finished reading the letter, it became light particles and disappeared. you now open the book and see the method. you need to sacrifice the blood of five sentient beings to obtain the power of a demon, however, you may sacrifice more, the more you sacrifice, the more powerful you become. as you have little to none conscience, even less after discovering your demonic origins, you have no problem with sacrificing humans. additionally, the book say that you have a demonic aura that make monsters listen to you. this give you a great idea. you know that somewhere in the forest near your fields there are basilisks, a B rank monster, led by basilisk king and queen, AA rank monsters. according to your information, the king and queen are sentient beings, however you can do better than sacrifice them.

you start your plan by building an underground dungeon, right underneath your house. you then go to see the basilisks. as they recognize your demonic aura, the queen and king asked you if you are a demon. you answer "I am currently in the process of awakening my demon blood. that is why I want your help. I want you to help me get sacrifices for the awakening ritual, the more, the better". as they want to have a powerful demon in the area, they agree to your proposal. after they settle in the dungeon, you go to the adventurer's guild, a place where civilians, both nobles and peasants, can put requests, and have adventurers do them. you enter and everyone stares at you as you walk in. as you have pretty muscular figure from all the hard work, they wander whether you came to become an adventurer or put a request. you go to the receptionist, who asks you "join or request?". you reply "request. basilisks entered my house and took the basement. I need someone to eradicate the basilisks. the payment is 500 gold coins". immediately after posting it, a party of five accepts the request. they are a B rank party. you guide them to your house then take the to the basement. after entering the basement, they are attacked by the queen and king. as B ranks can't hope to win against two AA ranks, they lost helplessly. after finishing defeating them, you tie them up in the dungeon. you then return to the adventurer's guild and say "troubles, they entered the basement, then I heard them scream 'it is actually an A rank basilisk mutant' before great silence. I will change the request from basilisks to basilisks mutants and raise the prize by 1000 gold coins. I would like a great expedition" after posting the new request, many parties accepted and joined for an expedition. you guide all off them to your house and guide them to the basement. you take with you a simple crossbow. you then enter with them when the basilisk king and queen appeared and attacked. every expedition member was surprised, because that is not basilisk mutant. the leader of the expedition, an AA rank female adventurer named Haoys fought the king while the queen prevented them from escape. the battle is equal, and you start aiming your crossbow. though it may look like you are aiming or the basilisk king, you are aiming for Haoys. you then fire your crossbow which "accidentally" hit Haoys instead of the basilisk king. the king use the moment she isn't focused to hit her. she flies at a nearby wall and fainted. when the leader fell, the morale became so low some of them just straight up stopped moving. soon there were no longer any adventurers who weren't in cells. now that you have caught all that you wanted to, you have one last thing to do before becoming a demon. you go back to the adventurer's guild, covered in blood. when you reach them you tell them "in the end, they were king and queen. luckily for us, the adventurers managed to make them ran away. I already gave them the money. they will come back soon".

you then go back to your house. it is time to become a demon.

information:
the adventurers guild: as mentioned in the chapter they accept requests from anyone. they are divided to classes ranging from F to AAA and S.
power levels-F rank(failure)-normal adult, E(extra)- a soldier, D(defect)- 2-3 soldiers, c(civilian)- knight, B(brave)- knight and 10 soldiers, A(amazing)- knight division, AA- low rank expedition/army, AAA- 100 imperial knights, S(superior)- one man army.
party- a group of adventurers who do quests together. a party's rank is determined the average of the party members ranks.