Since the third and fourth hokage sealed their souls and gave them to the demon lord as well as the 1st and 2nd does that just mean their there just chillin with each other or what???
They must be sitting together inside of his belly just like Kurama inside of naruto, they are probably talking about their past/achievments and other stuff and playing card games... Orochimaru's hands at least xd
death god belly's contain:
half of kurama chakra
minato soul
tobirama soul
hashirama soul
orochimaru hand
that 2 sound fodder ninja
and last but not least our pervy hokage hiruzen.. Did u notice that they're all man? Except the fodder one. She's gonna get gangbanged there.. LOL