Naruto's parents in the manga (spoiler)?

i guess that's one of the series' inconsistencies. maybe masashi got carried away a bit while writing that chapter with kushina saying goodbye to naruto. but yeah, those that used the dead demon consuming seal can't rest in peace. kinda sad, esp since the people who used it and the ones they sealed were good people (minato, hiruzen, tobirama, hashirama).