RWBY x lawbringer Reader

Phase 1:The man with a demon soul

Lets start from the beginning you are (Y,N)(L,N) you are the son of a great knight his name was (F,N) he was the most well know knight he was a lawbringer the sacred symbol of peace.
That fateful day happened like any other,calm and quiet,your father was lying in his bed dying from old age he called for you and you answered.

(F,N):Come here my son
(Y,N):Yes father
(F,N):My dear son I don't know how much time i have left o this world but i must tell you this before i go...take my armor and weapon it is yours like how it was passed down through the generations of this family...it belongs to you now I know dear boy but you must know that all things must die some day so dont look so down ok?
(Y,N):But father I am not worthy for such a fine weapon or armo-
(F,N):NONSENSE YOU are my son you ARE worthy you will have this armor because you are worthy if I didn't think you would be worthy then I wouldn't be saying this to you right here right now!Do you understand son?
(Y,N):Yes sir.If you say so then I will respect your wishes.

Time Skip 10 years

Comrade: SIR WE CAN'T HOLD THIS FORT MUCH LONGER I REPEAT WE CAN'T HOLD THISFORT ANY LONGER
(Y,N):YOU DON'T THINK I CAN'T SEE THAT,BUT WE MUST IT WAS A DIRECT ORDER FROM THE KING TO DEFEND THIS FORT AT ALL COSTS AND THAT IS WHAT WE WILL DO!!
Comrade:SIR HAVE YOU LOST YOUR MIND THIS IS A LOST CAUSE TOY MAY HAVE YOUR FATHERS ARMOR BUT THAT WON'T STOP AN ENTIRE ARMY!!
(Y,N):What did you just say... warden.
Warden:You heard me (Y,N)
*walks over to warden and grabs him by the collar*
(Y,N):You dare disrespect my father you dare disobey a DIRECT order from the king YOU ARE NOT FIT TO BE A PART OF THIS ARMY YOU BRING DISRESPECT TO ME YOU BRING DISRESPECT TO THIS KINGDOM!!But I swear to you warden this fort will not fall as long as there is a sword or a spear or any sort of weapon being used to take down those bastards then the fort has not fallen.Do you understand?
Warden:YES SIR!
*warden runs off to fight once more*
Time skip 2 days later
(Y,N):My king we have successfully defended the fort and we have driven back the invasion force
King:good work (Y,N) if you would so kindly follow me I will reward you
(Y,N):Yes my king
*stands up and follows the king*
King:I heard about the death of your father I am...sorry he was a great man he was the best of the best
(Y,N):thank you sir
*you and the king reach the treasury*
King:As a token of my gratitude take this sword
*hands over the sword*
(Y,N):thank you sir but I have no use for a sword if I have this pole axe.
King:well if you don't need it then I will take it back and give it to someone who does.
(Y,N):Oh nononono its fine sir I can still put it to good use
King:well then (Y,N) you better put that to good use then now get back out there and live your life I will call upon you when I need you
(Y,N):Aye sir
Time skip 3 years later
Conquer: Mate we need to reach the king!
Warden:I agree with conquer with that
(Y,N):Yes we need to clear a path!
Peacekeeper:Fine follow me I will clear a path
*Time skip 5 min later*
*pushes through the door to the throne room*
(Y,N):their deaths won't be in vain.*notices the king on the ground bloody*My king!
King:be..hind..you..
*barely blocks a swing by a gold sword that would have split your skull by blocking it knocks away your pole axe*
(Y,N):damn that was close
Enemy king:you lucky bastard
*(Y,N) mother runs in with a sword and warden armor (this is the only way I could think of to go with the story)*
(Y,N) mother:HANDS OFF MY SON YOU BASTARD!
*as your mother is fighting off the enemy king you pull out your warden sword you run at the king and you close the distance to swing upon him you see the king impale you mother and toss her on the floor*
(Y,N):NOOOOOOO
???:would you like to avenge your mother...would you like to avenge your friends that have died to protect your country?
(Y,N) YES,YES PLEASE LET ME PLEASE AVENGE MY FRIENDS AND FAMILY
???:as you wish but...you must say these words ad mortem intimicus
(Y,N):Ad Mortem Intimicus
*as you finish the sentence you get lifted back up an excruciating burning sensation covers you from head to toes then you let out an inhuman roar that could rival the devil himself you then land back on the ground but your armor is all black and you weapon has been changed as well as a a blue skull mask in front of your helmet with blue flames coming from the mask*
???:let me take this from here hmhmhmhm
(Y,N):NO STOP I SAID YOU SAID YOU WOULD HELP ME WHAT YOU DIDN'T SAY IS YOU WOULD TAKE OVER MY BODY!
???:Don't worry about it
(Y,N):I SHOULD WORRY ABOUT IT YOU HAVE MY BODY!
???:I said I would help you right...so that is what I will do but...I will need to control you for about 1 minute or so...bare with me here.
*This where the revenge begins*😈
???:so where was I ahhh yes about to kill this would be king
King:WHAT WAS THAT!
???:hahahahahahaHAHAHAHHAHA *low demonic voice*I am going to have fun watching the life drain from your eyes as I crush your skull
King:I'd like to see you try*smirks*
???:so be it
*your possessor quick dashes forwards to the evil kings eyes it looked like he teleported but he knew that teleportation was impossible..was it? Your possessor quick uses both of your hands to crush the evil King's skull but not before saying a few parting words*
???:Weak,undisciplined,and cowardice you have no right to be king but before you go look into my eyes and tell me what you see.
*and with that he crushed the kings skull as if it was paper but as he did so a thin blue line came out of the kings body presumably his soul and then the soul was...absorbed it your body by god knows what*
???:and with this I am done but I cannot leave your body so you are stuck with me until your dying days but before I sleep I will take you away from here
THE END OF FAZE ONE