That Time I Got Reincarnated as a Slime Season 4 Confirmed for April 2026, Special Video Released (5-Cour Project Begins with 2 Consecutive Cours)

That Time I Got Reincarnated as a Slime (TenSura) Season 4 is officially set to begin airing in Japan in
April 2026. The announcement arrived with a new “Special Video” (freshly animated for the reveal by studio
8bit), and it also confirmed that Season 4 will roll out as a massive split 5-cour project—starting with
two consecutive cours from April 2026.

Quick facts

• Series: That Time I Got Reincarnated as a Slime (TV Anime) — Season 4
• Premiere: April 2026 (Japan)
• Format: Split 5 cours total (starts with 2 cours airing back-to-back)
• Animation studio: 8bit
• Special Video: Watch on YouTube

The “Special Video” (what it is)

The “Special Video” is a short announcement piece made specifically for Season 4’s broadcast confirmation.
It features brand-new animation from 8bit and highlights the series’ signature humor and energy—right down to Rimuru’s
reaction when the news drops (with Wisdom King helping deliver the big reveal).

Watch: https://youtu.be/xCmbdX_fCdM

Season 4 story teaser (official introduction, spoiler-light)

Following the success of the Founding Festival and Tempest’s expanding diplomacy, Rimuru’s nation continues moving toward a world where humans
and monsters can coexist. But Tempest’s rapid growth—and Rimuru’s rise as a Demon Lord—has drawn the attention of those who see him as a threat.

According to the official introduction, new conflict begins as Grandbell Rosso (a former “Hero”) and his granddaughter Mariabell Rosso scheme from the
Kingdom of Siltrosso. Meanwhile, Demon Lord Leon is said to begin moving in El Dorado for his own purpose, and a “Hero” is about to awaken—setting the stage
for the next major clash.

Broadcast & streaming info

Only the April 2026 broadcast window and the multi-cour rollout plan have been announced so far.
Specific TV channels and international streaming platforms have not been confirmed yet. This post will be updated when official distribution details are revealed.

Where the announcement happened

The news was shared via the franchise’s official channels and a dedicated livestream event (archive available on YouTube).

• Official news post: https://www.ten-sura.com/news/anime/tensura/news/post/11134
• Livestream archive: https://youtube.com/live/iE9VMRIK25k
• Press release / details: https://v-storage.jp/bv_news/264250/

FAQ

When does TenSura Season 4 start?

Season 4 is confirmed to begin airing in Japan in April 2026.

How many cours will Season 4 have?

Season 4 is planned as a split 5-cour project, beginning with two consecutive cours from April 2026.

Is there a trailer?

A short announcement “Special Video” is available now: https://youtu.be/xCmbdX_fCdM