When a monster is defeated, a corresponding existence (human) in this world dies. In order to break the cold chain of fate, Youso was planning to invade beyond the wall and annihilate the enemy. What was needed there was the existence of the last remaining purebred Muir, Inono. Youso and Inono promised to carve out a future together, intertwining their hearts and bodies. However, among the wall masters, there exists a certain being... The third act of a thrilling girls' battle erotic action!