Like all the other higher rated job cards, it is a "rare loot drop" from a specific enemy
during a specific time zone in the game.

They are as follows:

Gehena Abyss, Present A(time zone), dropped by Greater Demons and Greater Demon Lords.

Gehena Abyss, Past, Greater Demon, Greater Demon Lord, Grim Reaper, and Will O' Wisp.

Gehena Abyss, Present B, Greater Demon, Greater Demon Lord, Blue Will O' Wisp, and Green
Will O' Wisp.