Kena learns the shocking truth about "Readeil" and falls into despair!? Upon arriving at the royal capital of Felskeiro, Kena begins her activities as a novice adventurer while attempting to make contact with three children. From the information gathered at the Adventurer's Guild, Kena discovers clues about the "Tower of Guardians" managed by comrades from 200 years ago. There, she uncovers the shocking truth about the world of "Readeil"—!?