He didn't know who he was, as he had just drank from the River Lethe in preparation for entering the Fields of Asphodel
"Move-" Nico pushed by the boy who could not remember his own name.
"Hey Nico-" The boy grabbed Nico's hand, which shocked Nico, not because the boy had the nerve to touch Nico Di Angelo, The Ghost King, Son of Hades, Zombie Dude- but because this boy seemed to know him, which was impossible, because his mind had just been completely and utterly wiped.
Nico saw the boy put the bowl of the cursed water to his lips.
"Who are you?" Nico was just trying to find his sister, he was upset... and so he drew his blade.
The boy met eyes with Nico.
"I have no idea, but I remember you Di Angelo."
"By the gods, who are you?"
"I… just told you- I can't tell you, I don't know."
"Whatever, do as you please, ghost boy." Nico walked into the fields dismissing the impossible.
He did a lot of that these days…
Ghost Boy did follow Nico.
After a bit of walking, Nico stopped abruptly.
"Who is she?" Ghost Boy asked.
The girl before them was short like them, moreso infact.
She had brown hair, and golden eyes.
"No idea, she's familial. But I've no memory of her..."
"Say, Nico, where's your sister?" Ghost Boy asked.
Nico nearly freaked out and stabbed the soul.
Then, something cracked in Nico's head, for a split second.
The dam that separated his sets of memories, gave him something.
Nico almost smiled, but he didn't know why.
"She's gone. Yeah, I haven't checked, but I'm pretty sure she is."
"Oh, well, it was good to see you again Nico!" And Ghost Boy turned around.
"Wait where are you-"
"I'll see you later bud!" Ghost Boy closed about a foot of distance.
Then, he did something Nico didn't expect…
He turned around and pecked Nico on the lips.
"Wait!" Nico screamed as the boy evaporated.
A single tear fell from Nico's face.
And Ghost Boy was gone.
But, where did he go?
Who was he?
Nico wondered these things as he planned his next course of action.