Kakashi dropped down as he stared at the barrier that prevented them from interfering in the Sandaime's and Orochimaru's fight. The Jonin narrowed his eyes, as he thought. "The backup plan will work...it has to."
One of the ANBU noticed the Hatake's arrival and bowed in respect. "Kakashi-senpai. What are you planning on doing?"
To everyone's surprise, Kakashi's Sharingan started to spin wildly until the tomoes converged and formed some sort of pattern. An ANBU recognized it, his eyes widening from the inside of his mask. "Wait...is that-"
Kakashi merely smiled, although not seen. He stared at the barrier as he shouted, "KAMUI!"
A black swirl appeared in the middle of the barrier and engulfed the part, creating a hole in the barrier. The four Oto-shinobi gaped in shock at the gaping hole in their barrier
"There's no fucking way!" shouted out the only female.
"How was he able to make a hole our barrier?!" asked the multi-armed one.
"It doesn't matter, we need to cover it back up!" barked the one with lump on his back
Kakashi looked at the ANBU and nodded. "Come on. Let's go help our Hokage!"
"Right!" shouted out all of the ANBU as one.
Kakashi and the ANBU leaped into the hole before it covered up fully, causing the four Oto-nins to grit their teeth in annoyance.
With Hiruzen and Orochimaru
The Sandaime gritted his teeth as he dodge a punch from his resurrected teacher and kicked him on the chest, sending him flying. Hashirama appeared from above and started to descended down, his fist covered in chakra.
"Saru! Dodge!" warned the Shodaime.
Enma jumped up and kicked Hashirama on the face, stopping his attack, and sending him towards the wall.
A large pool of water formed from above Hiruzen and started firing off water bullets at him. The Sandaime called for Enma and reached out. "Enma! Now!"
The Monkey King nodded and transformed back into his adamantine staff self. Sarutobi grabbed Enma and started deflecting every water bullet shooting towards him. Tobirama began to do hand seals, prompting him to warn his student.
"Saru! Act now! Suiton: Suiryū Kōbaku!"
A large dragon shape shot out from the pool of water and charged toward Hiruzen. The Sandaime waited patiently as the water dragon neared him. At the very last second, the Sandaime slammed the staff at the water dragon, dispersing it back into droplets of water.
"Suiton: Suijinheki!"
The droplets of water began to converge and trapped Hiruzen in a large wall of water of raging. Hashirama dropped down and started weaving through hand seals along with his little brother. Orochimaru cackled madly, his sensei trapped with no way of escaping.
Out of nowhere, a kunai sailed towards the two resurrected Hokage. Tobirama stopped weaving and caught it on instinct. Tobirama saw something dangling from the kunai and he blinked. "An explosive tag?"
"KAI!"
The explosive tag sizzled before it blew up and engulfed Hashirama and Tobirama in an explosion, obliterating them as their bodies slowly regenerated. Orochimaru gritted his teeth and slipped his hands into a hand seal, waiting for the enemy to make themselves known.
"Dammit! How was anyone able to go through the Shishienjin?"
Orochimaru's eyes widened as he heard the familiar sounds of a thousand birds chirping. He frantically looked everywhere, trying to spot where Kakashi was going to attack him. "Where is he going to appear? Right, left, above, in front, from behind?"
To Orochimaru's shock, Kakashi jumped out from the ground and moved in to pierce Orochimaru with his signature jutsu. "Raikiri!"
The Snake Sannin managed to curve his body enough, instead of his chest getting pierced, it was his shoulder. Orochimaru glared at Kakashi, who now stood unmoved by the traitor's obvious fury rage.
"How were you able to go through my barrier?!"
Kakashi moved his hand out from Orochimaru's shoulder and went for a kick, which Orochimaru jumped away from. Kakashi turned to face the raging water wall trapping the Sandaime. His Sharingan turned back into the Mangekyo and he shouted.
"KAMUI!"
Another black swirl appeared and created a hole in the wall, giving the Sandaime a way out. Tobirama and Hashirama reformed. The Nidaimed looked in surprise in seeing Kakashi's left eye.
"You have the Sharingan, yet you are not an Uchiha." noted Tobirama.
Kakashi nodded. "No. I'm not. This Sharingan was given to me by my best friend who sacrificed himself to save me."
Orochimaru growled and spat out dozens of snakes out from his mouth. "Mandara no Jin!"
But to his annoyance, the ANBU dropped down and worked on killing every one of his snakes. Orochimaru turned to the two resurrected Hokage and barked. "What on earth are you doing?! Don't just stand there! Do something!"
Tobirama looked up and smirked. "Oh don't worry, I'm not just gonna stand here."
He slammed his palm on his chest, a sealing array appearing as life reappeared in his eyes. He turned to face his big brother and slammed his palm on his chest, the same sealing array appeared and gave him back the life in his eyes.
Hashirama raised his hand curiously and bend them around. He gained a goofy grin as he shouted jovially, realizing that he regained his free will. "Wow! I can move freely again! Neat!"
Orochimaru took a step back, surprise completely etched in his face. Tobirama looked at the barrier and gathered the water still remaining and turned it to a jutsu. "Suiton: Suiryuudan no Jutsu!" The jutsu was strong enough to make a hole the barrier, which also brought some steam Tobirama looked at his brother and pointed at the hole. "Nii-san, go and help Konoha fight off the invaders!
Hashirama gained a serious look and nodded. "Right!" And leaped out to help against the fight.
Tobirama turned back to face Orochimaru, who was still unmoving due to the shock he's feeling, pretty sure fear adding in to the amount of emotions. "I was the creator, dumbass. Did you really think that me, out of ALL people, wouldn't create a countermeasure against a jutsu this dangerous? Truly, my student has taught you well." stated Tobirama snarkily. "Saru, and you." Pointing at Kakashi. "Let's get rid of this snake."
Before anyone could move, Hiruzen created four shadow clones and surrounded Orochimaru. The five began weaving through hand seals before breathing out all five elemental affinities. "Goton: Dairendan no Jutsu!"
Orochimaru jumped up and barely dodged the attack, his foot being hit, making him cringe. Kakashi jumped up and met the Sannin up ahead. "Raikiri!" Kakashi went forward to stab but strangely flipped himself over.
"Raiju Tsuiga no Jutsu!"
A canine shape shot out from the lightning jutsu and smashed against Orochimaru, slamming him down back on the elemental attacks, pretty much cooking up the snake. Tobirama formed another pool of water below Orochimaru and redid his jutsu.
"Suiton: Suiryū Kōbaku!"
Dozens of water bullets shot Orochimaru straight into the air before it all converged and smashed him back onto the ground. Kakashi formed a shadow clone and the both of them did the hand seals for his signature jutsu, but surprisingly enough, a chained link between the two was formed
"Raiden!"
The two Kakashis ran towards Orochimaru and wrapped him around with the lightning chain, shocking him but also slicing him. The Snake Sannin had no otehr choice and shed his skin, taking out a huge chunk of chakra from his reserves. The Sound Four dropped the barrier and ran towards for their leader, worriedly.
"Orochimaru-sama!" shouted the fat one.
Tobirama sneered and spat out a large glob of water towards the four, sending them back. The Nidaime chuckled as he threw a kunai towards each individual. "No one's gonna be helping this snake escape."
Tobirama smirked as he disappeared in a blue flash, reappearing in front of each members of the Sound Four before quickly knocking them out with just a kick to the face. Orochimaru gritted his teeth as he tried to sneak away while everyone's attention was not on him.
But unfortunately for him, his sensei was watching him escape. Sarutobi roared as he charged at Orochimaru, Enma in staff form still in-hand. The Sandaime slammed the cudgel on Orochimaru's stomach, sending him flying back. Kakashi focused once more, as his left eye significantly widened, shouting out the jutsu's name.
"Kamui!"
Orochimaru screamed in pain as the black swirl reappeared and sucked him up, sending him to somewhere else.
Tobirama reappeared, throwing the four unconscious bodies of the Sound Four to the middle. He clapped his hands and a wall of water surrounded the four Oto-nins, preventing their chances of escape.
Kakashi eye smiled and fell on his knees, panting. The strain of spamming Kamui finally catching up to him. Tobirama walked up to the Jonin and offered him a hand.
"Are you okay?" asked Tobirama.
Kakashi nodded and accepted the offer. "Yes, I am Tobirama-sama. It's just that the Sharingan taxes my body way too much. Even more when I use the Manegkyo and my Raikiri."
"Yes, I know all of it too well. Now, what's your name?"
"Kakashi Hatake. Jonin of Konoha and former ANBU Captain."
Tobirama nodded. Helooked out and saw a large red toad and the Ichibi fighting. Before large wooden trees sprouted out of nowhere and restricted the Ichibi, giving the red toad enough time to take it down. Tobirama narrowed his eyes and saw a someone on top of the toad jumping off it.
"Looks like nii-san's helping out quite nicely." Tobirama faced his old student. "You still up to fight Saru? I'm still brimming with steaming rage"
Hiruzen smirked and nodded. Tobirama nodded and casted a Shadow Clone to guard the trapped Sound Four. Him and his favorite student jumped towards the battlefield, with the ANBU following the Hokages. Kakashi smiled and decided to help out until he falls unconscious.
With Naruto
The blond gritted his teeth as he rode on the Toad Chief, trying to fight against the Ichibi, or otherwise known as Shukakuu.
"COME HERE BOY! SO I CAN KILL YOU!"
Gamabunta spat out a large glob of water, in which Shukakuu blocked with a wave of sand. The large racoon-dog slammed his belly and spat out a dozen of drilling air bullets.
"Futon: Renkuudan!" shouted out the Biju.
"Mokuton Hijutsu: Jukai Kotan!"
A large forest began to emerge around the two hulking beasts, surprising everyone still conscious. Naruto looked around, confused. "Where the heck did these trees come from?"
"You've caused enough destruction for now, Ichibi."
Hashirama dropped down on toa tree, making Shukakuu and everyone have a look in shock. Sasuke supported himself against Sakura, looking in disbelief at Hashirama. "I-isn't that-?"
"N-NO! NO! IMPOSSIBLE! YOU WERE DEAD!" shouted out Shukakuu in pure disbelief.
"And yet I'm not." Hashirama clapped his hand as wooden trees held Shukakuu down.
"OH COME ON! I JUST GOT OUT!
Hashirama turned to face Gamabunta and Naruto. "Gama-san. Shinobi-san. Take him out!"
Gamabunta nodded and took out his giant tanto. "Let's go!" Gamabunta leapt and slashed against Shukakuu, who screamed in pain as he sent back. "Now! Wake up his meidum!"
Naruto nodded and jumped off of Gamabunta onto Shukakuu. Naruto took a hold of Gaara's body and punched him hard on the face. "Wake. Up!" The full force of the punch woke up Gaara, prompting Shukakuu to recede back into his jinchuuriki.
"NOOOOOO! YOU'LL PAY FOR SPOILING MY PLAY TIME!"
With Shukakuu gone, Gaara began to fall down along with Naruto. Hashirama launched himself off the tree caught the two of them right on time. Gaara groaned and looked at Naruto, confusion striking his face.
"How? Just how are you so powerful?"
Naruto looked down, sympathy appearing on his face.. "I used to be just like you Gaara. But then, I met people who changed me and gave me a purpose. Being alone is never a solution! No matter what, someone out there cares for you!"
Just as he said that, Kankuro and Temari dropped down, The older male sibling looked in shock as he saw Hashirama. "Wait, isn't that-"
The Senju looked at Gaara and then at the two. "I presume he is your sibling?"
Temari and Kankuro nodded. Hashirama placed Gaara gently on the ground, prompting Kankuro and Temari to run up to him. "Gaara!" The two slung over Gaara's arms around their shoulders.
The youngest sibling didn't bother looking up, his eyes being shadowed by his hair. "Temari. Kankuro. I'm sorry."
The two looked at each other in shock. Hearing their brother saying he was sorry. Kankuro gave him a bittersweet smile. "It's alright Gaara. Come on. Let's get out of here." And the Sand Siblings fled.
Hashirama placed down Naruto and gave him a thumbs up. "Such words, Shinobi-san! You'd make a fine Hokage someday."
Naruto smiled then realized something. "Wait, aren't you Hashirama Senju?! The first ever Hokage!?"
The Senju just smiled and carried Naruto over his back, while he picked up the unconscious Sasuke and Sakura, who fainted at seeing the dead Hokage. "We'll just have to see later." And he jumped towards the village of Konoha.
With Orochimaru gone, the Ichibi defeated, Suna quickly surrendered, with Oto being swiftly defeated, all of the forces detained, except for Kabuto, who managed to escaped. The news of the two long dead Hokage brought shock the village, but also relief as they realized that although they had just suffered an invasion, no one would dare to attack with three Hokages on their side.