The following classes are available.
Complete the storyline for the indicated path to be prompted to choose five characters to save as Einherjar cards. They can then be used to purchase Skills or Characters on another path. They characters are selected from those who are available at the end of the game.
Have an open saved game slot. Also backup your current saved game to recover in the event of an error. Go to the Einherjar Shop and purchase any desired unit(s). Save the game into the open saved game slot. Hold L + R and press Start to restart your system. Reload your original saved game file. Delete the file that was created in the open saved game slot. You will retain unit(s) that were purchased in your Unit Logbook and no gold was spent on them. You can also use this trick sell items from your inventory to gain more gold to more purchase more expensive units.
Seals can be purchased for the indicated prices, from the listed enemy, or at the specified location.