Yuki Yuna is a Hero: The Washio Sumi Chapter

Before the days of the Sanshu Middle School Hero Club, there was another group of young women tasked with defending humanity from the mysterious, destructive Vertex. This is the story of Washio Sumi, a dedicated sixth-grader chosen by the divine Shinju to wield extraordinary powers alongside her new teammates, Nogi Sonoko and Minowa Gin. As the trio navigates the rigorous training and grave responsibilities of their heroic calling, they forge an unbreakable bond, learning to rely on each other in the face of an existential threat. This prequel delves into the origins of the Hero System, exploring the profound sacrifices and unwavering courage demanded of those who stand between mankind and oblivion. With intense action sequences and poignant character development, it’s a compelling look at the early days of heroism, where friendship is tested and the weight of the world rests on young shoulders.

✦ AI-drafted summary