So, Jujutsu Kaisen Season 3 just dropped the casting news we manga readers might have already suspected, but which anime-only viewers may have completely missed. That being Mappa announces Yoshiko Sakakibara is voicing the 500-year-old sorcerer known as Tengen when the Culling Game arc begins airing in January 2026. Yes, you heard me, Tengen! That being said, she is voiced one of the characters during the course of the series who is actually rather important. What a runaway!Sakakibara narrated during the mayhem at Shibuya in Season 2, but she'll also be Tengen and continue to narrate. How shocking is that? This is more shocking than a "domain expansion." That omniscient voice explaining curse techniques and transporting us through the madness of bloodshed was Tengen.Tengen's first appearance in the manga (Image Source: VIZ)Of course, Sakakibara is a phenomenal voice actor and brings enormous gravitas to this character. She has shown to do a fantastic job performing a strong, powerful, commanding, authoritative voice in Mobile Suit Zeta Gundam as Haman Karn, and again in Hellsing Ultimate as Sir Integra Hellsing. All three characters exemplified wisdom, strength, presence, and authority.Sakakibara, providing the voice of Tengen, while also taking on the responsibility of narrative, is more than an interesting casting choice; it positions Tengen as more than just another character in the series. Tengen in Jujutsu Kaisen Season 3 operates as an omniscient observer with a multi-century perspective on the history of jujutsu.Why This Casting Choice Matters?Tengen exposing Kenjaku's plan (Image Source: VIZ)Tengen's importance during the Culling Game arc is enormous, as, for the previous 500 years, Tengen has safeguarded the barrier systems protecting Jujutsu High and has actually created and allowed the Culling Game to manifest itself by weakening the barriers after the Shibuya Incident.Before we learned that Tengen had a human female form in the past, manga readers had already known this occurred, though this happened long ago; Tengen evolved beyond basic human gender. So, it's a bit more fascinating that Sakakibar has a feminine-sounding voice.The Narrator Theory Gains Official Status in Jujutsu Kaisen Season 3Tengen is handing something very important to Yuji Itadori's group (Image Source: VIZ)When Season 2 started, fans began to theorize who the narrator was. The theory picked up a lot of traction due to fans noticing that the narration felt omniscient rather than just observational. If someone had lived for several hundred years and saw jujutsu society evolve, they would have that perspective.The other indication with MAPPA's casting Sakakibara as Tengen and the narrator supports the idea of whether or not the character was Tengen; any studio could have cast different voice actors for each role. However, they chose not to identify the narrator from Tengen before it was finalized, creating a well-clipped perception of the evolution of the character always being related.Gege Akutami, the series creator, made a request that Season 1 and the prequel film would not have narration. Yet, the increasingly complicated cursed techniques explored later in the arcs required narration to describe the techniques. Tengen advising viewers makes total narrative sense in Jujutsu Kaisen Season 3.The Perfect Introduction for a Legendary Character in Jujutsu Kaisen Season 3Jujutsu Kaisen Season 3 will allow us to meet Tengen, who is essential to the Culling Game arc as the sole ancient sorcerer who will provide vital information and guidance. The lore behind jujutsu techniques, barrier abilities, and the jujutsu world will be essential for their survival.The compilation film, Jujutsu Kaisen: Execution, recently premiered in Japan, which featured episodes 1 and 2 of season 3. The words are out, and it is already stating that Sakakibara's Tengen captures the otherworldly essence, while still being unnaturally relaxed with young sorcerers.MAPPA knows what they are doing for Jujutsu Kaisen Season 3. They've put one of the most difficult characters in the manga in the care of a Voice Actress who possesses pure knowledge and centuries of power. The fact that Sakakibara has several works, most notably in My Hero Academia, is a testament to her passion for instilling fear and respect for her characters and their roles.Jujutsu Kaisen Season 3 is shaping up to be the most aggressively animated arc yet. For Yuji, a fight for survival with Sukuna in control and a Gojo locked away, the jujutsu world is about to enter catastrophe mode. Tengen's return from the tomb brings hope and secrets they have been yearning to share.The narrator was Tengen. The theory is now canon. And the Culling Game is going to begin.