As Roku neared the Nine tails he breathed a sigh of relief, it had worked he didn't have to threaten Fugaku but he didn't want his old habit of indecision to flare up again.
He looked towards the nine tails, "Pakura Don't Fail". Although he shouldn't be worried This girl wasn't just anyone, she was the Scorch Style users from the Hidden Sand. That's right, He has already recruited Pakura after the 3rd war ended and he saved her. Even Though she disliked the idea of serving someone so much younger a life saving grace was more than enough to make up for it
He looked towards the Nine tails and waited until he noticed the 2 Uchiha squad were in the right position and waited until he noticed the sensed signs of Obito's chakra Fading. After a short time he heard a loud crash far from the zone of destruction and stopped sensing Obito's chakra.
"IT'S TIME" He thought. He took in a deep breath and shot a large flare into the sky. Pakura Instantly noticed this and began the sign for her largest scorch style attack followed by the Uchiha clansman surrounding her starting the sign for the great fire ball and their clones for the great wind breakthrough, Although both being only c rank the 2 Jutsu had no limit on the amount of chakra used in the Jutsu and were perfect for combination Jutsu.
As the sounds of dozens of Uchiha ninjas releasing giant fireballs and winds combining these fires to make them even stronger a wave of fire was expelled towards the fox. This fire was so hot and large that it even outclassed Madara's Great Fire Extinguishment. As the Fox had barely come out of Obito's Genjutsu and hadn't even had time to react to his situation a giant wave of flame. Caught his attention.
He didn't have time to form a tailed beast bomb. He could only use his tails and front paws to protect his face. While this could lessen the damage towards his main body but it also blocked his view allowing Roku enter the second part of his plan
As Roku saw this he Breathed in Deeply and Chanted "Hino kami Kagura 13th form". He flew out in blinding speed toward the fox's back legs. As he drew his sword and it coated in all the flame chakra he could use and rushed toward the fox. As he appeared right by the fox and with his crimson sword sliced right into the fox's back legs and with a start dash he cut Kurama's Legs into multiple pieces.
A blood curdling scream came from the fox, with the Dual attacks of a sea of flames scaring his front paws and losing his back paws sent more pain through the nine tails body than he had ever felt he instantly turn back to attack the enemy but right when his eyes turned in that direction, Roku forced all of left over chakra into a Genjutsu, while it wasn't enough it stop the nine tails for a second.
But that's all the time Fugaku needed, with shock running through his body he forced all the Ocular power the Dozens of Uchiha Elite Jonin. Into a single Genjutsu to put the nine tails to sleep. And without even the ability the heavily injured nine tail was knocked unconscious.
It Started to fall, but as the hulking figure fell he noticed that a panting Roku was in its path, before he could even jump to save him a yellow figure appeared and picked him up out of the path.
"Minato!" Fugaku thought in relief. As Kunai was thrown towards him, Minato appeared next to him with Roku with one arm over his shoulder. Just as he was about to check on him Minato spoke. "How did you- No never mind" Minato asked in shock looking at the nine tails and down at the 14 year old boy. He felt a pride in his chest, ever since Roku became his guard Minato had spent a lot of time getting to know this kid. He had even passed on the Flying Rajin Jutsu to him, although he couldn't use it yet he was confident that he would master it one day.
As he was about to hand the boy over to Fugaku, Roku spoke up, "Where is Lady Kushina". Those words sent a silence in the area and Fugaku realized. If the nine tails was out that meant Kushina was de-. Before he could finish the thought Minato handed Roku over and disappeared and in the next second he appeared with Kushina holding a baby in her arms.
"She's Alive!" Fugaku exclaimed in surprise. Kushina smiled self-deprecatingly, "My Uzumaki Vitally Lets me live a little bit longer after the unsealing". Fugaku's smile disappeared from his face, "So you're still not out of danger," he said disappointedly. Kushina nodded sadly but right then.
"Seal the Nine Tails back in her" Roku Spoke out. Everyone looked toward the boy standing on the side. Minato spoke up "The village can't lose the nine tails, it could spark another war". Roku argued "Theirs a chance if we seal it back in her it could let her live, are you really going to let her die if theirs a chance of life". Minato contemplated that, and as he thought his expression was much brighter, "Your right". He turned toward Kushina, "His plan is feasible. I will split the nine tails with the reaper death seal and seal it into both you and Naruto". Kushina looked shocked, "That will kill you-" Before she could finish he grabbed Kushina and the baby in her arms and rushed toward the nine tails. He called over his back "I will complete the sealing don't worry".
Roku was annoyed, "I wasn't done" he sighed. He then fell on his but to recover his energy. While he wasn't injured he had pushed his muscles beyond their peak and used them for chakra in that one attack then what was safe, almost all of the muscles in his body were torn or pulled or just sore in one way or another.
He had planned all this to weaken the nine tails and allow Minato to seal in normally and survive but, if Kushina could change Minato's decision he definitely couldn't. He sighed "I Guess it all falls down to her to convince him to not throw away his life". "Worst Case i Just get Obito to use renne rebirth to revive him during the 4th war" he thought.