Iris tries to save a mother and child who claim their innocence. However, she finds herself paralyzed in front of the brigade leader, who possesses unfathomable malice and immense power... As Iris is tormented by her feelings of helplessness, Nina gently reaches out to her, questioning her own existence. This is the fourth volume of a tranquil fantasy in another world, beautifully illustrated by Ringo Takanashi, depicting the bond and determination between a witch and her apprentice!