あらすじ
Oscar Saionji, who attends Zeltoru Hero Academy, completely hides his out-of-the-box abilities and pretends to be "just an inconspicuous, ordinary person." The reason is simply "because it's somehow cool." However, those around him—the beautiful classmate Serena, Student Council President Aria, and the cool swordsmanship teacher Raven—all unique individuals, gradually begin to notice Oscar's hidden power. While rivals, the student council, and even the Demon King stand in his way, what is the true power hidden behind the "Chuunibyou moves" Oscar shows during classes and exams? The world-shaking, strongest Chuunibyou Hero is explosively born here!