It was the time of Naruto's birth, and Kushina was in the special barrier with Minato, screaming in pain.
"I can see the head! It's close," said Biwako.
"That hurts a lot, ya know!" Kushina's antics amused Minato, and made him smile a little, despite being afraid and sorry for Kushina.
"It's gonna be okay, Kushina" Minato reassured. "It will be worth it." Meanwhile he had to focus on maintaining the seal so that the Kyuubi wouldn't break the seal and force it's way out, since the seal was weakened during child birth.
"Push!"
"UUGHH" Kushina grunted, distorting her face to look like the Rashomon gates of the Shodaime(First) Hokage.
The cries of Naruto could be heard, and most of the pain was relieved from Kushina.
Minato was about to seal the Kyuubi when a mysterious masked man entered.
"Go away from the Jinchuriki. If you don't, this child is dead." He then dropped the child and ran to Kushina and teleported them away. Minato couldn't protect Kushina because if he did, Naruto would be most likely dead.
The masked man started the extraction process, and since the seal was so weak, it didn't take very long. "Uzumaki shinobi are truly amazing. Even after a extraction, you didn't die."
"Why are you doing this?" Kushina asked.
"I will use the Kyuubi to destroy Konoha." Kushina's eyes opened wide. "I'll let the Kyuubi kill you. It's only fitting."
Kushina caught a glimpse of the glistening red eyes of the masked man. The Sharingan! Is the Uchiha clan behind this? Kushina was furious. The Kyuubi's claws were closing in. She wanted to move, but that extraction took a lot out of her. Then Minato appeared to save her in a much too familiar movie style. He activated his sharingan to try to control Kyuubi. The he tried to use his Mangekyou Sharingan. It still didn't work. Then he too caught a glimpse of the masked man's sharingan. He too had the Mangekyou as it was not the standard pattern. Who ever it was, he had greater visual prowess than Minato.
He tried attacking the masked man, but it was futile as he just passed through. It shocked Minato, and he realized that it was a Space-Time Ninjutsu which did not require any seals, and therefore allowing things to pass through him and not suffer any physical damage. "Who are you?" Minato asked. "Are you... Madara Uchiha?" Although the mask covered the masked man's smirk, Minato could clearly feel it. Minato didn't see the Kyuubi's attack as one of it's tails managed to hit Minato and send him crashing into the trees.
"You can't attack me, while the Kyuubi can attack you, and you are no match for him."
He quickly realized that he was no match for the Kyuubi and the masked man. He teleported away and he came back to the exact same spot, except this time with Naruto in his hands. The masked man realized what Minato was trying to do and attacked Minato so he materialized, but Kushina attacked him, forcing him to become intangible again. He was about to start the Shiki Fujin Jutsu when Naruto suddenly started to react with the Kyuubi's Chakra. Kyuubi seemed to be sucking into Naruto, and when it was done there was the seal that Minato intended to place.
Minato was there, standing dumbstruck, wondering when his life would be taken away. The masked man was as surprised as Minato and decided to flee.