Izuku looked at the now named Rauru, 'Um, Hi Rauru. My name's Izuku Midoriya. This is Takoba Beach, in Musutafu prefecture, Japan. What are you? Where did you come from?'
'I am from a species called the Zonai and I was in the kingdom of Hyrule where long ago I was king'
Shocked with the implications that this wasn't just a very strange quirk but a completely unknown creature Izuku fell on his butt gazing up at the floating being in front of him. 'Wha?' He intelligently replied.
'Young Izuku I see a great injury has been laid upon you, can I do anything to aid you?'
'Oh my arm, it's been like that for years. Can't really do much about it now unless you can make me regrow one'
'I cannot regrow limbs but perhaps there is another way. Tell me what is a hero to you?'
'A hero? They are someone who will do anything to save anyone' the spark in Izuku's eyes gradually lit up, 'Someone who defeats evil and gives hope to those around them. Someone with the courage to do what is right.' Izuku's eyes now burned with a passion long kept alight by shear hope, before dimming, 'Someone strong enough to overcome challenges, Someone unlike me' he finished morosely.
'Young Izuku, your eyes just now shined with all the hope courage you just talked about. I think that within you there may be the spirit of a hero. Would you permit me to check?'
"Why not" Izuku thought before nodding his acceptance.
Rauru's arm started glowing as he approached Izuku, indicating towards his head, Izuku said 'Do it'. Before the clawed hand rested on his forehead. Izuku felt time slow as he watched his life flash in front of his eyes, before the stream of memories slowed. Izuku became aware that Rauru was watching the events with him, he felt his hand still on his head, but he could see him floating at the edge of his peripherals. Together they watched as Izuku made his way through the woods with Katsuki and Tsubasa. Izuku reexperienced the surprise of Kacchans explosion, leaping to save him and the fear of being trapped.
Izuku felt the panic set in, he was going to drown, he couldn't breathe, he was powerless.
Then a golden light seemed to wash over the memory as everything froze in place. The light destroyed the building panic within Izuku as Rauru spoke, 'You were a hero that day Izuku, even when other people would have been feeling anger at this Kacchan your first instinct was to save him. It is a disservice to you that your reward for that act was the loss of your arm.'
'But I didn't even do anything, what's the point of rescuing someone if you're not strong enough to save yourself.'
'You did a great deal. Yes you needed to be saved but if you hadn't acted Katsuki might have been dead. You have the courage and heart of a hero'
'But I was so scared, how could I be courageous'
'Young Izuku bravery is not the lack of fear but how you act in the face of it. I have decided, while I do not have the power over time to undo your injury I think I can assist you'
Izuku blinked and found himself standing back on the beach.
'Do you Izuku Midoriya swear to do anything you can to act as a hero?'
Feeling a gravity to Rauru's words Izuku solely said 'I do'
'Do you swear to protect innocent life to the best of your ability?'
'I do'
'Then I King Rauru of Hyrule grant you my power and hand to become a hero of your home' a blinding glow emitted from Rauru's right arm as he reached up with his left and with a violent jerk ripped his arm off. The glow faded and showed the no longer ethereal form of Rauru's arm. The shoulder was cleanly separated with a socket like joint. On Raurus spectral form there was now an even more ethereal arm matching the one he held in the air.
He offered it over to Izuku who took it with a shaky hand. Manoeuvring the shoulder into his empty shirt sleeve was tricky but once inside it seemed to fit flush against his shoulder perfectly.
The arm began to glow again starting from the fingers and travelling up the arm, as it reached the joint Izuku felt a warm tingle before the light faded. Izuku immediately felt the sensation of the wind on his new furry arm as he flexed his fingers. Rauru watched on with a smile as Izuku came to grips with having a second arm again.
Filled with joy Izuku dropped to do a push up, he struggled through it but his new arm seemed slightly stronger. Elated he ran over to a scrap pile and punched a fridge, he cursed as a jolt of pain echoed across his knuckles.
Teary eyed he turned to Rauru, 'Thank you, you have no idea what this means to me. Why would you do this for me?'
'Well you deserve to be able to achieve your dreams. I am long dead, all I am is the spirit of my wisdom and power. Stranded here I believe the greatest good I can provide is to assist someone like you to save lives'
'Now I should probably tell you about the powers of my arm' Rauru said, as he began to pace in front of Izuku as if he were a teacher. ' The inate ability of my arm is called ultrahand, it gives you the ability to control objects with your mind and join them together. You can only move inanimate objects but I'm sure you can come up with a use for it. The other power housed within the ring on our finger is the power of my late wife. Recall, a powerful ability that allows you to move an object backwards through time, this will move not remove damage from an item but only translatocate it. I believe you should act as if they were simply one ability of telekinesis to fit in better with the powers common in your world.'
'OhmygodIhaveaquirkIcantbelieveitIcantwaittotellkacchan. It'sdefinitelybelievablethatiinheritedthisfrommymothe.'
'Uh Young Izuku, before you get carried away I should say that due to you having the core of my power my spiritual form here is fading. My consciousness will now reside within your arm, you may call on me whenever you desire, but for now I must rest.' As the form of Rauru turned to mist and was sucked into Izuku's arm.
