Successfully complete the indicated task to unlock the corresponding class:

Archer: Have a Fighter Rank 2 and Healer Rank 2.
Armor Knight: Have a Fighter Rank 3 and Brawler Rank 3.
Black Knight: Have a Wrestler Rank 2, Lady Samurai Rank 2, Ninja Rank 2.
Gunner: Have a Fighter Rank 2 and Mage Rank 2.
Lady Samurai: Have an Archer Rank 2 and Fighter Rank 3.
Magic Knight: Have a Fighter Rank 3 and Mage Rank 3.
Ninja: Have a Thief Rank 2 and Brawler Rank 3.
Pirate: Have a Maid Rank 3 Gunner rank 2 and Archer Rank 2.
Professor: Have a Maid Rank 2 and Gunner Rank 2.
Sage: Have a Magic Knight Rank 4 and Professor Rank 2.
Thief: Have a Brawler Rank 2.
Wrestler: Have an Armor Knight Rank 2 and Fighter Rank 3.