"You are saying the Supremes lose their name when they become Supreme because they are no longer 'I' and instead became 'We'?" Nameless Death asked.
"Yes," the demon said. "We demons, unlike everyone else, still remember the original names of Supremes, but saying that name aloud would bring great danger to anybody who hears their name."
"I see," Nameless Death nodded.
Seeing that he had understood, the demon decided to continue, but before that, it glanced at Zagreus.
It was important that Nameless Death knew all of this information. Knowing the 'Berserker's' abilities would help them fight him next time.
Zagreus knew this and he agreed that they should explain everything to Nameless Death, especially now that they were in a partnership.
But there was no way Zagreus could talk about his mother's—Persephone—knowing how she had ended up.