3 being trained by the legendary Z rank hunter

so their I am looking at Lucifer and he stares back he said your not using your full power are you. I said how did you know he laughed and said I felt a lot of bloodlust that took over the whole kingdom. he said try your best to stay awake I was now scared at this point he rushed my forcing me to try my best so I used my abilities to try and match him then that's when it hit him he went flying threw a building he said nice hit then snapped his fingers the I passed out. when I woke up I was in a cave. the hunter said I was going to train their until I become king even though I was almost as powerful as a Z rank hunter. he wanted me to become even stronger and that I can be a good king and that I was going to work on how to become a good royalty. and that the king already knows about this when I heard my father let him kidnap me I was mad but at the same time happy that I get to train with the legendary hunter. so over the course of the years I've learned a lot of moves and tips and tricks. I've also used poison every type of it so when I get poisoned I can be alright the hardest one to overcome was demon poison and it hurt alright very much hurt it took over 5 years to get used to. by time I went home I heard my father was assassinated when I heard that my anger was rising Lucifer had to move me to a different area and he quickly moved so he doesn't get caught in the blast of my anger a giant explosion went off like a nuke. the air around me was red my eyes we're bloodshot red and I went on a killing spree killed every monster I came across. when a few hunters saw I was fighting a demon they were shocked and manage to capture it on a magic cam. so what happened why am I fighting a demon well when I killed every monster I came across he had been watching me and tryed to stop me but yeah he underestimated my power. his punches hit me but did nothing not even a mark he even used his poison but I became even more mad so when he threw his next punch I grabbed it and punched him so hard his stomach had a giant hole in it. then he died soon after Lucifer came back with three Z rank hunters I fought them all while I was still angry I knocked out Lucifer and the other two held me down while Lucifer got up and knocked me out. when I woke up they were immediately on defense u said I'm calm now and they saw the destruction I caused they were shocked because I killed over 1000 demons and I didn't even know it. soon after they said that a demon Lord came out and said you surprised me not going to lie. you killed 1000 of my troops trying to calm you down work on your anger because if you rampaged again I don't think no one will stop you so please work on it. I even made the demon Lord a little scared I said yea I guess I can soon after I said sure he left then I went back with all the dead bodys in my magic storage I put on my mask the whole town was shocked to see 3 Z hunters and when I went into the guild I showed them everything I killed but we had to go outside into a giant open field. the whole guild was shocked then the guild leader said it was you that went on a blood rage wasn't it.