[Machine Translation] Living in a world that closely resembles the VR game "Riadale," the High Elf "Kena" or Katsuina Kagami is leading a noisy but peaceful life with her new daughter-in-law, Luca, and the villagers. One day, in order to take Luca to meet her eldest daughter, Mai Mai, Keena decides to travel to Felskeilo again with Rit, the innkeeper's daughter, and Roxine, the maid. Despite being attacked by bandits, Kena and her friends arrive safely. Then, while staying in Felskeilo, Kena receives a call from a guardian in the form of smoke, asking her to save the "Guardian's Tower," which is running out of MP to maintain its functions. The "guardian tower" is a blue whale-shaped tower over 100 meters long that moves underwater...! Kena plans a plan to fish the tower out of the water...! The legend of the elves begins 200 years later in the 14th installment!