▁game ▁progress es . ▁Once ▁this ▁meter ▁has ▁reached ▁capacity , ▁that ▁character ▁can ▁be ▁tempor arily ▁" Bo ost ed " ▁for ▁quick er ▁and ▁stronger ▁attacks ▁and ▁far ▁greater ▁defense . ▁Once ▁certain ▁conditions ▁have ▁been ▁reached ▁during ▁game play , ▁boost ed ▁characters ▁can ▁util ize ▁a ▁special ▁move ▁called ▁" B urst " ▁that ▁quickly ▁de ple tes ▁their ▁Bo ost ▁meter ▁in ▁favor ▁of ▁an ▁ult ra - power ful , ▁extremely ▁wide - r anging ▁release ▁of ▁highly ▁destruct ive ▁energy . ▁ ▁Plot ▁ ▁Setting ▁There ▁once ▁was ▁a ▁wild ly ▁prosper ous ▁land ▁named ▁Y s , ▁ruled ▁by ▁the ▁tw in ▁God d esses ▁Re ah ▁and ▁Fe ena ▁and ▁their ▁six ▁priest ly ▁retain ers . ▁It ▁was ▁a ▁ver itable ▁parad ise , ▁with ▁all ▁its ▁residents ▁able ▁to ▁en act ▁m ira cles ▁at ▁will ▁through ▁the ▁use ▁of ▁magic ▁– ▁a ▁power ▁granted ▁them ▁by ▁a ▁holy ▁artifact ▁known ▁as ▁the ▁Black ▁Pear l . ▁One ▁day , ▁without ▁warning , ▁enorm ous ▁dem ons ▁march ed ▁upon ▁the ▁land , ▁bringing ▁death ▁and ▁dev ast ation ▁in ▁their ▁w ake . ▁Their ▁numbers ▁and ▁their ▁might ▁were ▁too ▁much ▁for ▁the ▁kn ights ▁and ▁sor cer ers ▁of ▁Y s ▁to ▁handle , ▁so ▁the ▁people ▁sought ▁shelter ▁within ▁their ▁h oli est ▁of ▁tem ples ▁at ▁the ▁top ▁of ▁the ▁tall est ▁mountain . ▁In ▁a ▁des perate ▁attempt ▁to ▁keep ▁these ▁people ▁safe , ▁the ▁tw in