The Devil is the 46th job of Minute Frontier.
Overview
The Devil wears a purple devil costume with lavender wings, red feet and two white horns on both sides of the head. The job is unlocked by defeating Devil Jr and progressing to 37.6km.
Strategy
The Devil is well suited for a late game job, providing some of the more intense abilities and providing decent stats that support offense physically as well as magically.
The first obvious choice of weaponry is the Spear, as the Devil has two of the six Through Spear abilities, allowing for maximum damage spread from enemy to enemy while using the Spear.
Another fitting weapon would be the Staff, gaining both a Bonus and Magic Attack Up in the later levels of the job, as well as a great INT and MEN gain per level.
For more information on strategy, look at Character Builds.