Kakashi was helping the citizens evacuate and they were hiding somewhere underground. Luckily there hasn't been any casualties and the damage the leaf village suffered was minor but He knew that White Zetsu needed to be stopped at all cost. Just as Kakashi was about to move to another part of the village White Zetsu appeared before him and he was smiling sinisterly at him.
"Not so fast, this is as far as you go!" Zetsu said
"What are you after?" Kakashi asked
"Revenge, I will also revive Kaguya while I'm at" Zetsu said
"Like I'll let that happen" Kakashi said
White Zetsu summoned two caskets and one of them opened while the other one remained closed. Kakashi was shocked to see who it was. It was Rin Nohara, his old teammate.
"Have fun!" Zetsu said as he disappeared
Rin stepped out and opened her eyes. Standing in in front of her was a man that looked like grown up version of Kakashi. When she got a better look at him she saw that it really was Kakashi.
"Kakashi? Is that you?" Rin asked
"Rin" Kakashi said
"What happened?" Rin asked
"You're dead Rin and you're being controlled to attack the village because someone summoned you with the reanimation jutsu" Kakashi said
Rin was flabbergasted to hear that she was being controlled by someone to attack the hidden leaf. She was angry that she was being used to attack her home.
"Kakashi please stop me, don't worry I'm already dead" Rin said
"I know, don't worry you'll be relieved soon" Kakashi said
Rin saw that Kakashi no longer had the sharingan that Obito gave him.
"Kakashi, what happened to your sharingan?" Rin asked
Kakashi told Rin everything that happened in the fourth great shinobi war. Rin was shocked but she managed to keep a straight face.
"I see, I'm sorry" Rin said
"Don't worry about it" Kakashi said
Rin felt her body move on its own and charged at Kakashi with a chakra scalpel. Kakashi managed to dodge all of the attacked that was being thrown at him. Kakashi managed to grab Rin's wrist and tossed her. She landed her feet. Rin looked at her old teammate. She saw that he was a lot stronger than he was back then. Rin then heard a voice in her head.
"Let's spice things up" Zetsu said
Rin made a chakra cloak surround her and Kakashi saw this as well.
"That must be the three tails chakra cloak" Kakashi said
Rin charged at him with blinding speed. Kakashi managed to get out of the way and formed lightning in his hand.
"Purple Lightning"
Rin was hit and Kakashi finished her with his next move. He trained his chakra control and was able to properly use the lightning blade without the assistance of his sharingan.
"Lightning blade!"
Kakashi stabbed Rin in the chest with this move and Rin could no longer move.
"Kakashi, I'm sorry" Rin said
"No, I'm the one who should be sorry. I couldn't protect you back then" Kakashi said
"No, I made the decision to ram myself into your lighting blade. I didn't want to be used to destroy the village" Rin said
"Please rest in peace from now on" Kakashi said
"Thank you and I'll tell Obito that you said hello after I'm done scolding him" Rin said
"Thanks Rin" Kakashi said
Rin disappeared. The other casket opened and Kakashi turned around to see that the other person that he was gonna fight was his father.
"Is that you Kakashi?" Sakumo asked
"Dad" Kakashi said
"It is you Kakashi, my how you've grown" Sakumo said
"I want to be happy to see you too but you're dead" Kakashi said
"So I'm being forced to fight my own son huh?" Sakumo asked
Kakashi looked at his father and waited for him to make his move.
"Alright then, Kakashi show what kind of shinobi that you've become" Sakumo said
"I will" Kakashi said
The two of them got into a taijutsu match and Sakumo was impressed that his son was this strong. He was also proud that his son has grown into a fine shinobi. Sakumo backed away and this time he was going to using ninjutsu.
"Lightning style: Lighting bullets" Sakumo said
Sakumo spit some big bullets from his mouth and they were made of lightning. He was launching several of them at once. Kakashi was able to avoid them and launched his own jutsu.
Kakashi formed two wolves in his hands. It was similar to Hinata's twin lion fists except they were shaped like wolves and they were made out of lightning.
"Twin Lightning fang"
Kakashi ran towards his father and attacked him but he was able to avoid it.
"You're gonna have to move faster than that if you want to catch me" Sakumo said
Kakashi charged at him again and moved a faster than he did before. This time he was able to hit his father with his technique. The wolves were gone but the lightning remained.
"Twin lighting fists"
Sakumo countered with his own jutsu.
"Wind style: pressure damage"
A large amount of wind was headed his way and Kakashi changed the color of his lightning.
"Purple lightning fists"
Kakashi managed to dodge the wind and subdued his father with his jutsu. Sakumo was no longer able to move.
"You've truly gotten strong Kakashi" Sakumo said
"It's all thanks to my comrades" Kakashi said
"You've also changed for the better. Looks like I don't need to worry about you after all. I'll tell your mom that you said hello" Sakumo said
"Thanks dad" Kakashi said
Sakumo disappeared and Kakashi was by himself again and he moved forward to look for more people that might not have made it out.
MEANWHILE WITH GUY.
Guy was fighting some of the clones that Zetsu made. This White Zetsu was able to make new clones of himself like it was nothing. Guy had his damaged leg replaced with prosthetic one and that allowed him to become a ninja once more. As Guy fought off the armor the real white Zetsu appeared and Guy wasn't able to tell that if he was the real one or if he was another clone.
"Have fun with this one might guy" Zetsu said
Zetsu disappeared and a casket appeared. Guy was shocked to see that the one inside the casket was his father Might Duy.
"Where am I?" Duy asked
"Father" Guy said
"Hmm?" Duy looked and saw Guy there
Duy looked forward and saw that there was someone who looked almost like him. Duy's eyes widened when he realized who was standing in front of.
"Is that you Guy?" Duy asked
"It's me, dad" Guy said
"You've really grown up since the last time I saw you. But how am I here? I thought I died" Duy said
"You did die your under the reanimation jutsu" Guy said
"Reanimation huh? Well if what you said is true then you have to stop since I don't have control over my actions" Duy said
"I know that" Guy said
Duy noticed Guy's leg and wondered what happened to him.
"What happened to your leg?" Duy asked
"I shattered it after opened the gate of death" Guy said
Duy's eyes widened in shock when he heard that his son managed to open all eight gates.
"But opening all eight gates kills you, how did you survive?" Guy said
"Our current hokage saved me back then and thanks to him I'm here" Guy said
"Well, I'm glad that you still have your flames of youth and you need to use them to stop me" Duy said
Duy charged at Guy and Guy did the same thing. They performed the same move and crashed into each other.
"Leaf hurricane"
They were now getting into a taijutsu match and Guy was able to get the upper hand and Duy almost lost his balance but he was able to keep going. Punches and kicks were sent back and forth towards each other.
"Severe leaf hurricane"
Guy was able to create a strong gust of wind to blow Duy back by kicking the air. Duy managed to land on his feet.
"Eight gates open"
Duy was now shrouded in a red aura. Guy knew that the advantage of opening all eight gates for his father was that he wasn't going to die since he was already dead. Guy was still alive and if opened all the gated he'll die. He didn't want to depend Naruto to save him again like he did. Guy had an idea on how to defeat him without the gate of death.
"Seventh gate: gate of shock open!"
"The gate of death is the most powerful gate you cannot defeat me with the seventh gate" Duy said
"Don't underestimate me, dad. I'll show that I'm capable of knocking out you gate of death" Guy said
Duy started to charge at Guy. Guy could tell that his father was about to use the evening elephant technique.
"First step"
Guy managed to dodge it and aimed at his father.
"Afternoon tiger"
Duy dodged it but the shockwave caught him off guard and that's all that Guy needed to finish him off.
"Morning peacock!"
With a flash fiery punches Guy managed to hit Duy several times.
"And now for combination attack"
Guy combined his Afternoon tiger with his morning peacock. The tiger was on fire and Duy had no chance of dodging it. He took the attack at full force and he was defeated by Guy's combination attack.
Duy looked up as his son and smiled that he was defeated by him.
"That was a splendid display of taijutsu son" Duy said
"Thank you dad. I was able to become a jonin thanks to all the training I did" Guy said
Duy's eyes widened when heard that his son was a jonin.
"Guy, you're a jonin?" Duy asked
"Yes and I'm one of the best" Guy said
"A taijutsu user like me was only able to keep the rank of a genin. To hear that my own son surpassed me has made me happy" Duy said
"I have student who's just like you and me. He was unable to use ninjutsu and genjutsu so he wanted to become a shinobi that used only taijutsu. He's jonin as well" Guy said
Duy had tears rolling down his face. He was truly happy that taijutsu masters were being born.
"That makes me feel relieved. I'll say hi to your mom when I return" Duy said
"Thanks" Guy said
They both gave each other the "Nice Guy pose" before Duy disappeared. When he saw that his father was Guy said one final thing before he headed off to another battle.
"Your sacrifice left a big impression on me and flames of youth. If you hadn't done what you did back then I wouldn't be the man that I am today. Thanks for everything Dad and rest in peace" Guy said
Guy then headed off to another location in the leaf to fight another Zetsu army.
