As the Defenders of Kagutsuchi continues on, they are in the bottom part of the Librarium where they have to defeat the enemies along the way. Back in Episode 19, Bang was very tired of the endless and sensitive battles and had to suspend himself from the team. But in this episode, Bang must show his true colors without quitting the team and the others should do that too. And so, all the tasks of advancing are completed. Thanks to Bang, who showed his true colors for knowing whenever he's not quitting the team. Not only that, the sixth and final Runestone has been found as well. As they're reporting this to Lorelei, he informed that the Amaterasu curse was held by Amaterasu herself. The gang put all six Runestones and have discovered a warp zone to the Amaterasu Shell, a sacred place where the structure that she holds. That's the only task that they have to take before the final battle.