Information
Along with the normal rewards from a battle, you also receive a grade. This measures your choices in battle, and is dependent on a large number of factors, both positive and negative, listed below.

Once everything is calculated, you end up with a total at the end of the fight (either positive or negative), which is combined with your overall Grade total up to that point.

This has no real effect on the game the first time you play it, but once you play through the game (this includes both the Main & Character Quests), you can visit the Grade Shop before you begin your next playthrough. This gives you the chance to "buy" various upgrades and cosmetic changes to the game, using whatever positive Grade balance you ended the game with. This store acts as a checklist, so you can check and uncheck the different items to purchase, since some items do not work with others.

Skits and Titles acquired during the game carry over to the next play-through automatically.

Positive
Battle Action Effect
Finished battle in 10 sec. or less +.50 (per character)
Blocked enemy attack +.01 (per block)
Blocked enemy attack with special defense +.02 (per block)
Full TP at the end of battle +.25 (per character)
Full HP at the end of battle +.25 (per character)
Attacked enemy's weak element +.02 (per attack)
Performed a combo +.02 (per each 5 hits, with a 2.00 max)
Used Climax Mode +.50 (per use)
Used Climax Combo +.50 (per use)

Negative
Battle Action Effect
Damage taken -.01 (per successful attack)
Damage taken from absorbing attack -.10 (per successful attack)
Hit by enemy combo -.10 (per each 5 hits)
Character with status effect at end of battle -.50
Item used in battle -.05
Character KO'd -.50 (per KO)
Controlled Character KO'd -1.00 (per KO)
Controlled Character KO'ed when battle ends -.50
Attacked enemy's strong element -.05 (per attack)

GRADE Shop
Purchase Details
20 Items (20) Hold up to 20 items. Cannot be used with "30 Items." (Does not change eres stone maximum.)
30 Items (50) Hold up to 30 items. Cannot be used with "20 Items." (Does not change eres stone maximum.)
Increase Max HP
(50)
Start the game with maximum HP for all characters increased by 200. Cannot be used with "Decrease Max HP."
Decrease Max HP (10) Start the game with maximum HP for all characters decreased by 200. Cannot be used with "Increase Max HP."
Double EXP (100) All EXP earned doubled. Cannot be used with "Half EXP" or "Combos."
Half EXP (100) All EXP earned halved. Cannot be used with "Double EXP" or "Combos."
Combos (20) Set EXP earned to 1 point and increase Combo Bonus. Cannot be used with "Double EXP" or "Half EXP."
Eres (100) Inherit eres known when game was cleared. (Eres Stone and usage also inherited.)
Recipes (5) Inherit all recipes known. The number of times the food was made will "not" be inherited.
Double GRADE (30) All GRADE earned doubled. Negative GRADE will also be doubled.
Gald (50) Inherit Gald in possession when game was cleared.
Battle Info (5) Inherit values for encounters and maximum combos.
Play Time (5) Inherit game play time.
Collector's Book (5) Inherit information in the Collector's Book.
Clothing: Formal (50) All characters' battle clothing set to "Formal." This "cannot be changed" during the game. Cannot be used with "Clothing (Costume)."
Clothing: Costume (50) All characters' battle clothing set to "Costume." This "cannot be changed" during the game. Cannot be used with "Clothing (Formal)."