The Final Battle with the Black Witch! After a fierce battle against numerous rivals, the pair of Kakami and Kagami, along with Horinouchi and Mitsuru, have won the right to challenge the Black Witch by unleashing the highest frame of witches, the Geoframe. Now, the day of the final showdown with the Black Witch, sealed on the moon, has been set—the execution date of Hexennacht is confirmed, and the two are preparing for the impending battle. This is a rematch against the Black Witch, the creator of this world and the source of calamity. For Kakami, this is a fight he cannot afford to lose. However, just before the day of the decisive battle, an unexpected event occurs—!? "I'm sorry! I'm really sorry!" This is the grand conclusion of Minoru Kawakami's highly acclaimed cross-media project, presented simultaneously in novel and comic form! Pay attention to the developments that differ from the comic version!