That Time I Got Reincarnated as a Slime Season 4 Episode 17 will not air on its original schedule. The episode, initially set for July 31, 2026, has been pushed back by one week due to programming adjustments on Japanese television. The new episode will now release on Friday, August 7, 2026.
The delay affects the NTV broadcast in Japan. In place of Episode 17, a special recap episode titled “That Time I Got Reincarnated as a Slime Season 4 Recap – The March of the Monster Nation” will air on BS11 on August 1, 2026, at 10:00 PM JST. This recap will review the key events of Season 4 so far and prepare viewers for the upcoming confrontation with Granville Rozzo.
New Episode Release Date and Time
Episode 17 is now confirmed for Friday, August 7, 2026. The episode will air in Japan on NTV’s “Friday Anime Night” block at 11:00 PM JST. It will also broadcast on BS11 on August 8, 2026, at 10:00 PM JST.
For international viewers, Crunchyroll streams the new episodes on the same day they air in Japan. The platform simulcasts the series across North America, Central America, South America, Europe, Africa, Oceania, the Middle East, and CIS territories. The exact time on Crunchyroll is typically 7:00 AM PT / 10:00 AM ET.
Other streaming options include Crunchyroll Amazon Channel. The series is also available on Netflix in select regions and Muse Asia for audiences in Asia.
Why Episode 17 Was Delayed
The official website for the series announced the schedule change on July 18, 2026. The NTV broadcast on July 31, 2026 was cancelled due to programming reasons.
This is not the first delay for Season 4. Episode 5 was also postponed earlier in the season, moving from May 1 to May 8, 2026, due to scheduling issues around Golden Week. A special recap episode aired in place of Episode 5 as well.
The production team at 8-Bit studio continues to work on the series. Season 4 is the longest season yet, planned for five cours (about 15 months of content). The first two cours are airing continuously without breaks.
What to Expect in Episode 17
Episode 17 is titled “Lubelius, the Point of Convergence” (Japanese: 集束の地ルベリオス). The episode will continue the story following Episode 16, which aired on July 24, 2026.
Episode 16, titled “Gran, the Hero of Dawn,” showed Luminus meeting with Rimuru to discuss Gran and future plans. The episode also covered Rimuru’s ongoing efforts to build alliances between humans and monsters.
The conflict with Granville Rozzo and his granddaughter Maribel Rozzo is reaching a critical point. Granville opposes Rimuru’s vision of coexistence between humans and monsters. He believes humanity should be protected by ruling over them. Meanwhile, Demon Lord Leon is pursuing his own agenda in El Dorado.
Episode 17 will likely show Demon Lord Leon heading toward Lubelius. The stage is set for a major confrontation in the Holy Empire of Lubelius. The recap episode on August 1 will help viewers remember the key plot points leading to this moment.
Season 4 Episode Schedule
Season 4 premiered on April 3, 2026. The first 24 episodes follow a weekly release pattern. New episodes come out every Friday.
Here is the confirmed schedule for upcoming episodes:
- Episode 17 – August 7, 2026
- Episode 18 – August 14, 2026
- Episode 19 – August 21, 2026
- Episode 20 – August 28, 2026
- Episode 21 – September 4, 2026
- Episode 22 – September 11, 2026
- Episode 23 – September 18, 2026
- Episode 24 – September 25, 2026
The season will continue beyond these 24 episodes, with three more cours planned. The total episode count for Season 4 is expected to exceed 60 episodes.
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Why You Should Watch This Series
That Time I Got Reincarnated as a Slime remains one of the most popular isekai anime series. The fourth season continues the story of Rimuru Tempest, a salaryman reborn as a slime who builds a nation where monsters and humans coexist.
The series stands out for its world-building and political storytelling. Rimuru faces challenges from powerful enemies while managing the growth of his nation, Tempest. The show balances large-scale battles with character development and diplomacy.
Season 4 adapts material from the light novels written by Fuse. The animation is handled by 8-Bit studio. Miho Okasaki returns to voice the protagonist Rimuru Tempest.
The series has a score of 8.09/10 on popular anime databases. Fans praise its consistent quality and engaging storylines. With the longest season yet, viewers have plenty of content to look forward to.
The upcoming episodes in the Lubelius arc promise major developments. The confrontation with Granville Rozzo will test Rimuru’s ideals and leadership. Episode 17 marks the beginning of this important story chapter.
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