Yuna Yuki is an ordinary middle school student. But there is one extraordinary thing about Yuki-she belongs to the "Brave Hero Club." What does this club do? Who is "Vertex?"

Yuna Yuki is an ordinary second-year middle school student. She gets up in the morning, goes to classes, participates in club activities, and has fun with her friends. But there is one extraordinary thing about Yuki-she belongs to the "Brave Hero Club." What does this club do? Who is the mysterious being called "Vertex?" Yuki Yuna and her friends' story takes place in Year 300, Era of the Gods.—Sentai Filmworks

Lots of people talk about helping others, but Yuna Yuki and her friends Mimori Togo, Fu, and Itsuki have gone a step further, forming a "Hero Club" that people can ask for assistance. Then things go further than they ever expected when they find themselves offered real super powers in exchange for helping defeat the Vertexes, who seek to destroy the Divine Tree and kill all life. It's an easy decision to make, but what they don't know is the price that each of them will have to pay for their new abilities. With great power comes great responsibility, but in this case it also comes with a devastating cost for every girl who enters the Hero System. Get ready for the genre-bending series that changed Magical Girl anime forever in YUKI YUNA IS A HERO.—Sentai Filmworks

Yuna Yuki is an ordinary second-year middle school student. She gets up in the morning, gets ready for school, goes to classes, participates in club activities, and has fun with her friends. But there is one extraordinary thing about Yuki -- she belongs to the "Brave Hero Club." What does the Brave Hero Club do? Who is the mysterious being called "Vertex?" Yuki Yuna and her friends' story takes place in Year 300, Era of the Gods.—Crunchyroll

In her everyday life, Yuuna Yuuki is a hero. As proof, she is in her middle school's Hero Club, where she does her best to help others and bring a smile to everyone's face. But Yuuna, always up to any task, is about to become an even bigger hero. Mysterious destructive forces called Vertexes begin threatening the world she loves, and the Hero Club is called upon by a strange phone app to save it. Along with her best friend Mimori Tougou, as well as sisters Fuu and Itsuki Inubouzaki, they must transform into magical girls in order to battle the Vertexes. In between studying and putting on shows for kids, Yuuna and the Hero Club must fight for the very existence of their world and face the harsh truths behind their own powers, all the while discovering what it truly means to be a hero.—MAL Rewrite