Ansatsu Kyoushitsu is a unique action-comedy manga that blends assassination training with emotional growth and life lessons, following Class 3-E, a group of misfit students tasked with killing their own teacher—an eccentric, tentacled super-being known as Koro-sensei—before he destroys the Earth, a mission that transforms from a deadly objective into a powerful journey of self-discovery as Koro-sensei uses unconventional teaching methods to help his students overcome fear, failure, and societal pressure while sharpening their academic skills and personal confidence, mixing high-stakes action, sharp humor, and heartfelt moments with deeper themes about purpose, mentorship, and what it truly means to succeed, making it one of the most beloved and accessible shonen manga of its era with global popularity across manga, anime, and film adaptations, also known as Assassination Classroom, Assassination Classroom manga, Ansatsu Kyōshitsu, 暗殺教室, Ansatsu Kyoushitsu manga, Koro Sensei manga, and assassination school manga.