Fans of the critically acclaimed anime Kaiju No. 8 recently tuned in for Episode 21, titled “Omen,” which aired as part of the ongoing second season. The episode, which debuted on Saturday, September 13, 2025, in Japan and was made available globally via Crunchyroll, offered a crucial period of reflection and preparation amidst the escalating kaiju threat.
While some episode listings for Season 2 might indicate a lower count for the specific season, the overall series continues its numbering, with “Omen” serving as the 21st installment in the Kaiju No. 8 anime saga. Season 1 concluded with 12 episodes in June 2024, and Season 2 officially premiered on July 19, 2025.
A Necessary Respite Amidst Rising Tensions
Episode 21 steps away from the high-octane battles that often define the series, instead focusing on character development and building narrative tension. The installment largely depicts the Japan Anti-Kaiju Defense Force (JAKDF) taking a much-needed break following recent intense engagements.
Kafka’s Training and Reconnection
A significant portion of “Omen” centers on protagonist Kafka Hibino’s continued training under Vice-Captain Soshiro Hoshina. These training sequences are interspersed with moments of Kafka reconnecting with his squadmates, including Reno Ichikawa and Iharu Furuhashi. This reconnection proves vital for Kafka, offering reassurance and strengthening his resolve after a period of isolation. The episode also delves into flashbacks, providing deeper insight into Kafka and Mina Ashiro’s shared past and their early experiences facing the kaiju threat as children.
The Looming Threat of Kaiju No. 9
Despite the relative calm, the episode subtly underscores the increasing danger posed by Kaiju No. 9. The spread of unusual kaiju attacks across Japan and the emergence of new, strange kaiju with unprecedented abilities are highlighted, setting the stage for a monumental confrontation. This “calm before the storm” approach allows the anime to build anticipation for Kaiju No. 9’s imminent all-out assault on Japan.
Where to Watch Kaiju No. 8 Season 2 Episode 21
“Kaiju No. 8 Season 2 Episode 21” is available for streaming on Crunchyroll, which offers both English subtitles and dubs. New episodes of Kaiju No. 8 Season 2 are released weekly on Saturdays.







