(NaruSaku & possible other ships)
When an old friend returns from a supposed death. To be faced with an unbelievable betrayal. When the friend that once swore to protect you turns to hunt and kill you. A Promise of a life time Forgotten.
When a friend obtains a power so strong they play god. The forgotten jitsu, of reversing, accelerating, and stopping time at will. This friend would become a forgotten being A Time lord. Whose powers near twice as strong then all of the tailed beasts combined and more. When he goes further beyond to create the most perfect blade and weapon. A blade to kill the unkillable, permanently.
He would die. Only to live again. As in death he refuses to die until he got what he wanted. The death of Naruto Uzumaki and Sakura Haruno He would destroy everything they cared about and more. Attack when no one is looking. Speak the truth out to people.
The children would be talked by him, and learn more of the truth. Would they be Spared? Killed? Or Trained? In his way. Many will fall by his hand (Hint: death of major characters) he does not stop hurting them until they are broken. Until they felt how he felt. Suffer as he has suffered. He gave Naruto his trust and belief and he betrayed it. & when the time comes when all is said and done. He will be free. His revenge will be compete.
Alan Prime.
A man once's saved by his master Minato. Who he had lost along with his friend Kushina but before he passed minato gifted to him an old ancient & forgotten jutsu, The art of time. & in this case minato taught Alan the powers to accelerate time, to move fast without the use of chakra & most importantly look into one's future predicting an attack before it comes,
However Minato never hoped that would be the biggest mistake he ever made for the curse of this power was heavy. If Alan were to look to far into one's future he would be cursed forever seeing the future of the one he looks into for every single night and day in his dream, The same reoccurring future every time & the only way for him to go free is either it happens or the source of the future vision dies via: killing the person he looks into the future for.
After Naruto parents passed Alan Swore to protect him even though he himself would be shun from the people of Konoha as they were cast out of the entire village, Alan wouldn't care his concern was only naruto, he would be there for him
One day Naruto Would ask Alan a hard question. To look into his future to see if he'd end up with the girl he loved Sakura Haruno, But something went wrong. Alan would accidentally look too far, & was cursed. He would see the future of Naruto & Sakura together A family with children & a happy life plus he was a lot older too
After realizing the problem Alan made the hard decision on finding out more secrets on the powers of time, to master them fully. He had to leave Naruto & the leaf village behind, But it would all be in order for Alan to protect Naruto better. His final day before leaving as Naruto watched him leave he spoke out one last thing
"Naruto."
"Hm?"
"Promise...Promise me that... you'll set me free...Promise me that... you'll make the future that I saw happen. Please. Promise that you'll set me free"
"...yeah! *small laugh* as long as you'll promise me. You'll come back! Then... It's a Promise of a life time Alan!"
But Years would pass... Alan never returned. & the whole village would assume that he died. But as the years went by Alan would return after fully mastering the powers of time, he would be known as a Time Lord-Shinobi. Alan Would see Naruto once more even though he had to suffer years & years of torment seeing the same vision every night he was excited to see his old friend, especially since he heard that he was getting married. Alan would in secret watch the wedding in secret as he saw Naruto waiting for his future wife. But his happiness would be replaced with shock. The woman he he thought that he would marry wasn't Sakura but instead be hinata Huuga, The girl that Alan despised because she would be the constant barrier between Naruto & Sakura.
Confused & shocked he wouldn't stay for the wedding but instead left to the top of the hokage mountain wondering & an emotion filled him deeply
"...he lied...The fox lied...he forgot about me...how dare he...Naruto...Fox!...TRAITOR!"