Hiro watched as the previous Hokages appeared on the battlefield along with Sasuke and his group. Hiro watched as the fighting continued and Obito appeared becoming the new Ten Tails Jinchuriki. He got excited as he watched and waited.
He watched as all the previous Hokages fought Madara and things were heating up, the Tailed beasts were released from Obito and a bunch of stuff Hiro didn't care about happened. He continued saving the Konoha ninja and kept a close eye on Minato.
Everything was proceeding as canon because Madara was just too strong, even if they all attacked him together he would still win. Hiro didn't care as nobody was dying. He watched as Madara was brought back from the dead and took all the tailed beasts back becoming the Ten Tail jinchuriki himself.
Hiro held his hand and continued watching as Naruto and Sasuke came back and started fighting Madara before he got his left eye back and summoned meteorites. Madara then used Infinite Tsukyomi on the moon and put everyone to sleep.
Hiro flashed to the battlefield and got excited as he stood in front of the reincarnated Hokages, Kakashi, Sasuke, Sakura, Naruto, and Isabella. He laughed "Finally! Haha!" Naruto said "Dad?" Minato mumbled "Dad?" Hiro turned around and grinned, giving the group a thumbs up saying "Good job!"
They were confused and Hiro said "Madara is at his peak power now." Hashirama said "You're with Madara?!" Hiro looked at him as if he was an idiot and said "Um. No. I've been making Madara stronger from behind the scenes for one purpose..."
The group was stunned and Isabella slapped her forehead saying "You don't mean..." Hiro laughed and said "That's exactly what I mean!" before jumping up into the air and shouting "Madara! Fight me!"
Madara turned around just in time to get punched in the face and blasted into the ground, destroying the earth. Hiro shot down and spin in the air, dodging a truth seeking orb before kicking out, sending Madara flying away.
Hiro landed on the ground and frowned, he grinded his teeth and went back to the group saying "I can't believe this." Sakura tilted her head and said "What?" Hiro grabbed Minato and merged the white zetsu with him as he said "Madara is so weak. I'm seriously disappointed."
Hiro slapped Minato with an Ultimate Body re-creation token and threw in all the added benefits he could give with the Impurity cleanse, the potions, Asura cells, etc. He unlocked everything for Minato as his body was reborn from his soul.
Hiro turned around and kicked a rock into the distance, shattering a mountain as he said "All that work for absolutely nothing." the group sweat dropped and Naruto said "What happened to my dad?!"
Hiro looked at Minato and said "I brought him back to life." he picked up a corpse and threw in the red hair from Kushina's grave before bringing her back from the dead with Edo Tensei.
Naruto and the rest were stunned.
Hiro threw in Kushina's shadow and the white zetsu before throwing in everything else just like Minato and bringing her back to life as well. He looked at Madara, who was changing into Kaguya.
[Congratulations! You've completed [Bring Minato and Kushina back from the dead!] Reward: Demi-God Mystery Chest!]
Minato and Kushina were re-created and opened their eyes, looking around in confusion. Naruto looked at them in a daze and Hiro stayed silent, not looking at any of them. Sakura looked at Hiro and could feel his sadness.
She realized that Hiro truly did love Naruto as a son, even to make Naruto happy, he brought his real parents back from the dead. Sakura was shocked and hugged Hiro from behind, she didn't say anything but she comforted him. Hiro refused to turn around and shook Sakura off before walking towards Kaguya alone.
Sakura watched him go and sighed, she looked at Naruto, who was crying tears of joy. She shook her head to herself and kept quiet.
Hiro felt the space around him changing and he waved, shattering Kaguya's powers as he flew towards her, locking space in a domain around him. He flashed to Kaguya and kicked out, Kaguya said "Who are you." as she blocked the attack with a black stick.
Hiro looked at the easy block and said "I'm the one whos going to kill you." Kaguya snorted and waved out, slashing down the blade. Hiro kicked the air and dodged before covering his fist in black and punching at her.
She blocked with the stick and flew back a few meters.
Hiro stood in the air and clapped his hands together. A black and red flame lit up over his entire body and formed into a long cloak with 9 cuts at the end, making the end of the cloak have 10 separate flaps.
On his shoulders there were two designs on dog heads with red eyes.
On his face, the whites of his eyes turned red and his pupils were shaped as flames surrounded by his blue irises. He had black lines over his cheeks resembling whiskers and a black line from his upper lip to his forehead before branching out like a 'T'.
Kaguya was stunned and said "That's impossible!" Hiro replied flatly "Nothing is impossible." he opened his mouth and a black ball appeared, Hiro bit down before opening his mouth again as a beam of Chakra shot towards Kaguya, prompting her to dodge to the side.
She was a bit too slow and her hand was blasted off.
Hiro kicked the air and flickered to Kaguya, his right hand turned into a paw and he clawed down, tearing the space in lines as his paw fell on Kaguya, who met it with a rod before being overpowered and blasted into the ground.
Hiro stood in the air and looked down at Kaguya, who was getting angry. He couldn't care less, he was pretty angry himself right now.
He blasted another Bijuu blast out of his mouth at Kaguya on the ground and she slipped into a space gate, dodging as the blast created a massive explosion. The group were shocked and backed off.
There was a massive crater in the ground and Hiro tilted his head as a Chakra rod pierced at where his head was from a space gate behind him. He grabbed the air and Ruyi Bang appeared in his hands as he spun around and thrusted into the space gate, knocking Kaguya out from another location.
He reverted Ruyi Bang's extension and it grew to a pillar as he flashed to Kaguya and slammed it down with all his strength, his face was still flat and blank. Kaguya slashed out with her Chakra rod and activated Shinra Tensei, blowing Hiro away.
Hiro flew back and stabilized in the air, Kaguya's eyes turned and Hiro was sucked towards her as she thrusted the sharp chakra rod at him. Hiro spun in the air and changed from the cloaked Cerberus form into a giant chakra form of Cerberus with 3 heads and all.
Hiro was in the forehead of the middle head and Cerberus charged at Kaguya, swinging his paw down at her, she dodged and Cerberus made another massive crater. He pointed his 3 heads at Kaguya and opened his mouths, 3 balls of chakra were formed.
One was Fire, the other was water and the last one was a black mass. He released the beams and they intertwined, merging into one as it sped at Kaguya. It was extremely fast and Kaguya escaped through a space gate, Hiro turned Cerberus' heads and the beam curved, clipping the bottom half of her body, but her upper half came from behind Hiro and stabbed through his shoulder.
Hiro tightened his muscles around the Rod and spun around, slashing down at Kaguya with Excalibur. She was alarmed and let go of the rod, backing off.
Hiro got her handless arm and chopped it off at the shoulder, separating Black Zetsu from her body. Hiro bent his other arm and held his palm out at the severed arm and black zetsu before releasing a blast of black flames and turning the arm and Black Zetsu to ashes.
Obito died and Kakashi awakened Eternal Mangekyou Sharingan in both his eyes as he brought everyone away from the battlefield.
Hiro continued to fight Kaguya, switching Excalibur to his left hand as his right grabbed onto Poseidon's trident and thrust out, blowing a massive pillar of water at Kaguya, who was blasted away.
Hiro threw the trident at her head and she blocked with a Chakra Rod. Hiro switched Excalibur to Ruyi Bang and expanded it to a massive size before slamming it down on her. The Trident disappeared and Hiro smashed her into the ground, decimating the entire battlefield in the process.
Hiro took Ruyi Bang back and returned it to his soul as he stood there in his Cerberus Mode, looking down at the sprawled out Kaguya. He floated down and landed on her, she choked "You're.... not... from this world..."
Hiro was silent and she added "My world... the one I created... you've tainted it..." Hiro looked at her and said "Unfortunately, you don't get to decide that." she coughed out blood and replied "That's true... They'll just come for me..."
Hiro said "The other Otsutsuki? Probably. But that's in the future. Not now." Kaguya just closed her eyes and stopped talking. Hiro slashed down with Excalibur and severed her head from her body, killing her.
He pulled out her shadow and then pulled the air as all the shadows on the battlefield flew over to him, before entering his own.
[Congratulations! You've completed Main Quest [Kill Kaguya!] Rewards: Next World Token, Multiverse Fragment, Flying Nimbus, 5x Ultimate Mystery Chest!]