The eerie world of Hell Teacher: Jigoku Sensei Nube has captivated audiences for decades, bringing Japanese folklore and supernatural encounters to the classroom. When delving into “Episode 6,” fans might encounter two distinct narratives depending on which anime adaptation they are following: the classic 1996 series or the newer 2025 rendition. Both episodes showcase the series’ signature blend of horror, action, and moral lessons, but they tackle entirely different supernatural phenomena.
The 2025 Adaptation: The Terrifying “Teketeke Mystery”
The sixth episode of the newly produced Hell Teacher: Jigoku Sensei Nube anime series, which began airing in July 2025, is titled “The Mystery of Teketeke” or “The Teketeke Ghost.” This installment plunges student Makoto into a chilling urban legend, a popular topic online.
Makoto’s Descent into Fear
The central plot revolves around Makoto, who becomes consumed by terror after learning about the “Teketeke Legend.” According to the ominous rumor, the Teketeke spirit, which is the ghost of a girl tragically bisected by a train, will appear within three days to anyone who hears her story. Makoto’s anxiety escalates as he believes this superstition, leading to a series of unsettling events around him. He becomes particularly unnerved by the sounds of railroad crossings and mysterious presences, signaling the spirit’s impending arrival.
The Inevitable Encounter
Despite Nube’s attempts to reassure him by insisting that Teketeke is merely a myth, Makoto’s intense fear inadvertently draws the spirit closer. On the third day, the Teketeke finally appears before him, driving him to a desperate cry for help. This episode features the yokai “Teke Teke” voiced by Hiroko Kiso. The plot highlights the psychological impact of urban legends and the power of fear itself in attracting supernatural entities.
The 1996 Original: “Nube Dies!? The Strongest Rival: Youko Tamamo”
In contrast, Episode 6 of the original Jigoku Sensei Nube anime series, which aired from 1996 to 1997, presents a battle against a powerful fox demon.
The Schemes of Youko Tamamo
This episode, titled “Nube dies!? The strongest rival: Youko Tamamo,” introduces Kitsune, also known as Youko Tamamo. Tamamo is a formidable rival who seeks to become human by attempting to kill Hiroshi and obtain his skull.
Nube’s Perilous Defense
Meisuke Nueno, the psychic teacher Nube, steps in to protect his student. During his attempt to save Hiroshi, Nube finds himself in a dire situation. He falls into a dark warehouse where he is severely injured, ending up “topless in a blood bath after he falls in a dark warehouse and his torso, arms, and back are slashed by 4 claws.” This intense confrontation underscores Nube’s unwavering dedication to his students, even at great personal risk.
Legacy and Impact Across Adaptations
Hell Teacher: Jigoku Sensei Nube originated as a manga written by Makura Sho and illustrated by Okano Tsuyoshi, serialized in Weekly Shonen Jump from 1993 to 1999. The story consistently follows Meisuke Nueno, a psychic teacher at Domori Elementary School, who utilizes the power of his “demon hand” to resolve various supernatural incidents.
The series has seen multiple adaptations, including the original 1996-1997 TV anime, movies, OVAs, and the recent 2025 TV anime series. The reappearance of voice actors like Ryotaro Okiayu as Nube and Toshiyuki Morikawa as Tamamo Kyosuke in the 2025 series bridges the gap between the generations of fans. Each adaptation, while rooted in the same core concept, brings new interpretations and focuses on different stories from the vast supernatural world of Jigoku Sensei Nube, ensuring that both new and long-time viewers can find fright and excitement in its episodes.