Thunder 3 on Netflix Is the July Anime Drop You Need to Put on Your Watchlist Right Now

Missing friends, childhood bonds, and a mystery that spirals into something far bigger — Thunder 3 looks like the sleeper anime hit of summer 2026.

Thunder 3 is an upcoming Japanese Netflix Original anime series produced by Fuji TV, and an adaptation of Yuki Ikeda’s manga of the same name, which is serialised in Kodansha’s Monthly Shonen Magazine. Mark your calendars — this one is coming fast. whats-on-netflix

Thunder 3 Netflix: Everything You Need to Know

What Is Thunder 3 About?

Thunder 3 centres on the unbreakable bond between three childhood friends as they embark on a desperate search for a missing girl. The series follows Pyontaro, an ordinary middle schooler, and his two best friends, Tsubame and Hiroshi — a trio known as the Small 3. Their lives are upended when Pyontaro’s cheerful younger sister, Futaba, suddenly vanishes. Joining forces to find her, their search quickly escalates into a profound adventure that takes them far beyond their wildest imagination. whats-on-netflix

It’s the kind of premise that anime has always done well — grounding a fantastical story in something deeply human and emotionally relatable. A missing little sister, loyal friends, and a world that turns out to be much stranger than expected? Consider us hooked.

Voice Cast

Four confirmed cast members have been announced for Thunder 3: Honoka Mitsubachi as Futaba, Eri Akiyama (known from My Hero Academia) as Hiroshi, Natsumi Kawaida (from The Summer Hikaru Died) as Tsubame, and Sayumi Suzushiro (from Love is War) as Pyontarou.

The cast brings serious anime pedigree — My Hero Academia and Love is War fans will recognise names here, which is a promising sign for the quality of the vocal performances.

For fans of anime keeping up with the latest Netflix drops and seasonal simulcasts, check out more coverage on Technosports.

Why It’s Worth Watching?

The weekly episode format means you’ll have something to look forward to every Wednesday, making it a great companion piece to whatever else you’re watching this summer. With Fuji TV behind the production and a genuinely intriguing premise, Thunder 3 has all the ingredients for a compelling binge once the season wraps.

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