Mameo

Mameo (マメオ), originally known as the Black Knit Cap Man (黒いニット帽の男), is a mysterious man. His true name is unknown, but Luche calls him Mameo because of the Mamemon print on his hat, and he himself adopts the nickname afterward.

Appearance
Mameo is a young man with fair skin, brown hair and blue eyes. He wears a black knitted hat with a white Mamemon smiley face on it, a yellow and black hooded shirt with long sleeves, black pants with yellow pockets, and black sneakers with yellow soles.

Description
Mameo carries a that was presumably his partner Mamemon. Unfortunately, it is stuck in that form due to the BH Program.

Digimon World -next 0rder-
He first appears in Server Desert, trying to restore a Gotsumon that had been infected by the BH Program with a basic antivirus, but fails. Shiki/Takuto, Kouta and Himari come across him while he does this, and assumes that he is the human behind the unexplained Machinedramon attacks. After the protagonist defeats the Machinedramon, he introduces himself and his partner, who is stuck in Digiegg form because of the BH Program infecting it.

Brought back to Floatia, he explains that he was attempting to remove the infection, but failed. He passes on his prototype antivirus to the protagonist.