At the cost of the gods' protection, a new era has dawned, giving the remnants of mankind a chance to rebuild. Having fulfilled their duties to Taisha, the members of Sanshu Middle School's Hero Club finally begin to enjoy their youth, living as regular students. However, such a conclusion did not come about without sacrifice. In the year 298 of the Divine Era, Mebuki Kusunoki is among the potential candidates to become the next hero. Despite her painstaking efforts to surpass her competition, she loses the position to Karin Miyoshi, leaving Mebuki furious at Taisha's decision. Two years later, Mebuki is appointed commander of the Sentinels—a group tasked to explore uncharted territory beyond the barrier. The team's seemingly simple mission is quickly disrupted by unforeseen threats, endangering the innocent lives of the fleet. To prove her worth as a hero, Mebuki vows to bring everyone back alive, no matter what it takes.

A two-part new animation released with both Blu-ray/DVD boxes.

Dreaming of becoming a hero and vanquishing the Demon King, Raul Chaser enters the Hero Training Program in pursuit of his ambition. However, when the Demon King is defeated and peace returns to the world, the Hero Training Program is suspended indefinitely, making it impossible for anyone to become a hero. Two years later, Raul reluctantly works at a small electronics store called Magic Shop Leon. Though the former hero-in-training is plagued by the mundanity of working in retail, everything changes with the arrival of a new hire. Appearing at first to be just a boy with good looks, he turns out to be a female demon by the name of Fino Bloodstone. She is not just any old demon either—Raul's new coworker is in fact the daughter of the late Demon King! Handed the responsibility of training this eccentric new employee, Raul soon finds his life becoming livelier than it ever was before.

When Demon Queen Echidna begins her invasion of the human realm, the people turn to the hero Leo Demonheart to protect them. Blessed with insurmountable power, Leo easily repels Echidna's army, thereby saving the world. But instead of gratitude or admiration, Leo is met with disdain and scorn from his fellow humans, who fear his overwhelming strength and believe that it may eventually cause humanity's demise. Banished from the kingdom he once called home, Leo wanders aimlessly throughout the land until, one day, he hears rumors of Echidna's efforts to rebuild her army. Hoping that demonkind might accept him as an ally, he returns to the demon queen's castle and offers Echidna his help. Naturally, Echidna immediately rejects him. Still, not all hope is lost, as Leo manages to convince Echidna's four generals to let him secretly work under their supervision. Donning the identity of a masked dark knight named Onyx, Leo solves the demon army's problems one by one—gradually improving the quality of life around the castle. Above all else, however, Leo wants to accomplish one goal: to learn why Echidna started the war in the first place.