Final Fantasy XV: 10 Perfect Fan Theories That Make Everything Better
4. Prompto's Mother Is A Naga
For players that happened to purchase the official FFXV guide, there is a rather profound secret revealed in there. Vestall – the man behind Niflheim's daemon experimentation - is actually Prompto's father.
This should have been in the main game. Perhaps it will be explored in Prompto's DLC, but it's still criminal to have players pay for content which is rather essential to understanding the main characters.
Anyway, this got players wondering about Prompto's mother.
When the bros explore Fociaugh Hollow for the first time, Prompto gets kidnapped by a Naga – one of those hideous giant snakes with a woman's face. The Naga seems extremely confused – instead of attacking Prompto as she would anyone else, she refers to him as “my baby...”
After the bros catch up, the Naga asks Noctis if he knows where her baby is – however you answer, the daemon attacks in rage and you are forced to kill her.
What if Prompto's mother was one of the women in the Niflheim
breeding programme, experimented on, turned into a Naga, and escaped
along with the rest of the daemons that had been imprisoned in the
city? Hopefully the Prompto DLC will explore this further.