Summoned as a hero in middle school, Hizaki Shio bested the Demon King and returned to Earth. Three years later, he’s summoned once more to stop Helheim—the secret society he founded during his chuuni phase when he called himself the Corpse King.

Watt Sears, once a star pilot, is content with his now quiet and humble life. But everything changes when his long-lost daughter asks for his help. Now caught in a not-so-bloodless battle for the throne, can this old knight survive his new post?