Blue exorcist The satanic prince of hell

Changes (nyx's pov)

It had been a long day so I was not prepared for what happened next
A strong aura hit me I knew it all too well it was rin's his aura went to full demon it was strong intense but also very alluring
Even so it worried me how was it done I'll have to ask him later

Just moments later lord Satan has summoned me.

I was now standing outside face to face with the giant black doors when something caught my eye blue flames very bright blue flames just like Satan's but the only difference was that it wasn't Satan it was Rin
Standing next to him felt weird but I couldn't help thinking how hot his new look was he stood with pride and posture at this point I could feel the hatred radiating off of Rin it would be a great asset.

Soon We were summoned in the throne room I bowed on one knee but what shocked me was seeing Rin bowing to his own father
'I'm glad you're both here' Satan said he looked to me and said 'nyx do you sense any human in Rin at this exact moment?'
"No I don't all I sense is a demonic aura radiating off him" my response was simple and straightforward

I assumed lord Satan could sense the amount of rage and hatred that seemed to pour out of Rin in big waves I could see a smirk grow on the demon king's face it was intimidating just seeing it just that one smirk could radiate so much malice and cruelty.

'So how are you feeling Rin' he said to his son as he turned his head away from me
'Hatred and rage' he said his response didn't surprise me. 'good son, let that rage and hate fuel your fire to make it stronger, don't let it go' I heard him say to his youngest son 'you are dismissed Rin' he said again

As he left Satan took his seat and faced me
'Tell me nyx was my son telling the truth and you. I know you could sense it the murderous intent, the rage, the hatred, his soul. I know you could feel all of it' I listened intently as not to disrespect Satan if I did it would mean I'd have pay with my life
"Yes...Yes i did the hatred and rage it was strong even murderous not a single drop of humanity was left all there was is a demon one that may very well surpass you all there is now is your son nothing of who he used to be is there any more" my voice sounded intense when I explained it to lord Satan but from his reaction he couldn't be more pleased with my answer

'First step completed' I heard him mutter
"Um, sir what do you mean by 'first step completed' what are you planning for Rin" I asked
'Well it's quite simple, I plan on making him the next demon king if I die I will need a successor to secede my throne and bring my desire into fruition and I can only do that if I have all my son's loyalty' the demon lord stated
Looking straight at me