UR Tears to Tiara Kakan no Daichi ティアーズ・トゥ・ティアラ Portable 45 NG+ Devil Mode Max Level Story Battles Continued 7 And Good Blue Skill Books Appears

These books once taught to chars can increase a certain stat via a percentage of it which is why in DM Bracelets are more useful than Gauntlets even for Physical Fighters as even if not shown on a 999 stat it still lights up to blue meaning an increase if the bracelet's effect isn't already on an Equipments or Skill Book Red and/or Blue equipped to that character