"Injuu Kyoushi" is an adult anime series that delves into dark and supernatural themes. Episode 1 introduces viewers to a mysterious and eerie storyline, where a malevolent force infiltrates a school setting, leading to unsettling events. The episode focuses on the experiences of the characters as they encounter these supernatural occurrences, blending horror elements with explicit content. The animation style captures the ominous atmosphere, enhancing the suspense and intensity of the narrative. As the series progresses, it delves deeper into the characters' psyches and the sinister forces at play, offering a complex and immersive experience for viewers interested in horror-themed adult anime.