A monster from Greek mythology primarily known for stealing food from Phineas. They are depicted as either ugly or beautiful women with wings. The harpies were sisters to the Greek goddess Iris.
"The Harpies live in the sacred Dikti Mountains of Crete. They are considered goddesses of death, and at the same time goddesses of rainbows. They are believed to be divine manifestations of the wind."
"Spirits of the wind in Greek lore. Originally thought to be a goddess of the island of Creta. "Harpy" is the English name; the original Greek name is Harpuia. The Harpies consisted of three sisters: Aello ("storm"), Ocypete ("swift"), and Calaeno ("dark"). They are cowardly and hate fighting, but they were also spiteful and enjoyed causing trouble."
—Shin Megami Tensei: Strange Journey Compendium
Devil Summoner: Soul Hackers
"Spirits of the wind in Greek lore. Originally thought to be a goddess of the island of Creta. "Harpy" is the English name. The original Greek name is Harpuia. The Harpies consisted of three sisters: Aello ("storm"), Ocypete ("swift"), and Calaeno ("dark"). They are cowardly and hate fighting, but they were also spiteful and enjoyed causing trouble."
—Devil Summoner: Soul Hackers Compendium
Persona 2: Innocent Sin
Harpies are first seen in the game upon the party's first encounter with Joker, during which he summons them while in a brief skirmish with the party. Harpies will start making regular appearances upon reaching the Zodiac club.
Harpy is also the first Persona of the Temperance Arcana. She can be summoned as soon as 20 Temperance Arcana Tarot Cards have been obtained.