"Sage's mom and this other lady if I assume that they have conveniently human-legible genders." Any other first generation crossbreeds?

There's apparently just the Sage and another boy who looks massively similar to him.

"There was another half-'n-half."

"None of the legends mention the Sage having a sibling."

"Could be the other lady's." He can check that.

Nope. Appears that only one of the two women reproduced.

"Isn't, though, so he had a baby -" Check. "Brother if we're assuming really humanlike aliens."

"It's curious that interbreeding could happen at all."

"No kidding. I don't even have gametes. Maybe they did it with a chakra technique or something."

"That could explain why bloodlines are genetically incongruous, too..."

"Genetically incongruous?"

"Genetic testing was just in its infancy during my life, but there are - ways you can tell a gene's history, in part?"

"Orochimaru noted that too," Sasuke says. "In a lot more detail."

"Also, do you want me to go ahead and bring back another person? I think we might want to wait on the Third until we have the Fourth back here, but..."

"Do we have any idea how long he'll take?"

There's another flash of yellow light.

"Sorry I'm late, I was catching up with my son," says Minato. "He'd really like to see Sasuke at some point, by the way."

"Aww, I'm glad. Anyway we've discovered that the Sage of Six Paths and his brother he apparently had were half space alien!"

" - That sounds like a really long story! At least in terms of what happened with the space aliens. Anything else I missed?"

"Pretty much just that. He's got a copy of their home planet over there. Only two of them have ever been here and only one had kids. Think we should get the Third back now?"

"That'd be nice! Jiraiya didn't really trust Sasuke at all, but he's suspicious of anyone even loosely connected to Orochimaru, I think, and Naruto spoke well of his character, so I'm willing to trust in you all for now."

"Cool, I'm getting very into resurrections." Materials!

And he puts back the Third Hokage.

"Ah, young Sasuke," says Sarutobi when he forms. "Interesting. Did you have a reason for summoning me?"

"I wanted to talk to the Second and maybe Fourth and First, and also since I was breaking the Death God's seal anyways I wanted to stop Orochimaru from getting any of you. I'm hoping to help find a peaceful resolution to war, too, and you know the most about recent politics."

He regards Sasuke evenly, and a bit sternly. "That's not an easy task, peace."

"I know."