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How Not to Summon a Demon Lord 3 confirmed – Diablo, Shera and Rem’s voice actors returning

Michelle Topham April 6, 2026

How not to summon a demon lord season 2 diablo and girls

How Not to Summon a Demon Lord, Season 3 rumor is true!

I have to admit I laughed out loud — delightedly, I might add — when the upcoming How Not to Summon a Demon Lord, Season 3 was announced earlier today.

Because, come on, as we all know, it is now five years since the utterly fabulous Season 2 of the isekai harem anime series aired its last episode, so I think I am probably representative of the rest of the fandom when I presumed a third season was beyond all reason.

But, here we are, with a pretty reliable leaker on X posting only a couple of days ago that Season 3 was on its way, and the upcoming season confirmed by the anime’s official X account this morning.

Season 3 is officially titled How Not to Summon a Demon Lord: ULT – which apparently stands for Ultimate Slave Magic, although nothing more than that has been announced as of yet.

We did, however, get a Season 3 announcement visual, created by original character designer Takahiro Tsuruzaki, and featuring Demon Lord Diablo, Rem and Shera looking even more joined-at-the-hip than I remembered.

Takahiro Tsuruzaki's Season 3 of How Not to Summon a Demon Lord announcement visual

How Not to Summon a Demon Lord‘s previous seasons production info

Should season 3 of the fantasy isekai anime look similar to the first two seasons, we can expect either Season 1 director Yuta Murano (A Sign of Affection), or Season 2 director Satoshi Kuwabara (The Café Terrace and Its Goddesses) to helm the third season.

Chances are it may have switched studios again though, as Studio Ajia-Do animated Season 1, while Season 2 was animated by both Tezuka Productions and Okuruto Noboru.

That technically means the animation studio for Season 3 is anybody’s guess.

We do know lead voice actors Masaki Mizunaka (Diablo), Yu Serizawa (Shera), and Azumi Waki ​​(Rem) will be back, as they are listed on the anime’s official website, and have all released congratulatory messages for Season 3. So, yay!

Guess we will see about the rest when more information drops, right?

Meanwhile, you can also expect more cries for censorship and discussions about “misogyny” and “slavery bad” from the usual woke folks with no sense of humor when Season 3 drops.

Thankfully, the Japanese are refusing to back down from support of total freedom of expression, which also means we can expect more of the same anti-woke hilarity in Season 3.

As it stands right now then, Season 3 is confirmed and, I will say with absolutely no exaggeration, that news has absolutely made my week as the first season of How Not to Summon a Demon Lord back in 2018 was the fantasy anime after the equally hilarious Konosuba that made me become truly invested in the isekai genre.

On a side note but connected, I also must highly recommend the often ignored gem Combatants Will Be Dispatched!, which I watched recently and is from the same pen as KonoSuba — the funniest fantasy anime/sort of isekai I have binge-watched in years, and one you will hear me excitedly scream about no matter where in the world you are if we ever suddenly hear it’s getting a Season 2.

About the Author

Michelle Topham

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Brit-American journalist, and Founder/CEO of Baozi Buns. Began covering anime, donghua, K-drama, C-drama when I lived in Asia. Then never stopped.

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