Sono Shunta Cast as Kamen Rider Mugen in 2026 Summer Movie

TL;DR, M!LK member Sono Shunta will play Kamen Rider Mugen, Shuma Kumon, in the Kamen Rider ZEZTZ and Super Space Sheriff Gavan Infinity W Hero Summer Movie, which opens in Japan on July 24. The character uses the Daydream Capsem to gain power over dreams and daydreams.

M!LK member Sono Shunta has been cast as Kamen Rider Mugen in the Kamen Rider ZEZTZ and Super Space Sheriff Gavan Infinity W Hero Summer Movie, which opens in Japan on July 24, 2026. The role links the current Kamen Rider series to Toei’s new red-hero project.

Sono Shunta Is Playing Kamen Rider Mugen

LK member Sono Shunta will play the newly announced Kamen Rider Mugen. The reveal came with a new trailer and visual that show the idol in suit action, effectively serving as a Kamen Rider Mugen announcement video. In the story, Shunta portrays Shuma Kumon, a cousin of Kensei Odaka, also known as Nox, from Kamen Rider ZEZTZ.

Kumon fixates on daydreams, seeking a way to control both waking and sleeping worlds. He uses the Daydream Capsem to transform into Kamen Rider Mugen. The announcement positions Kamen Rider Mugen Sono Shunta as a key force in the movie’s conflict.

How that conflict plays out pairs neatly with ZEZTZ’s dream-tech premise. E. team studies and channels the power of dreams, Kumon turns daydreams into his own advantage.

The footage and visuals suggest he could be the major villain driving the two-hero team-up, though that specific role is not yet confirmed. What is clear is the family tie to Nox and the unique transformation device, both of which signal high stakes for ZEZTZ’s cast. The film’s setup promises clashes across blurred lines of reality and imagination, with Kumon’s ambitions testing the heroes’ grip on both worlds.

Fans in Japan can catch the W Hero Summer Movie 2026 in theaters starting July 24. D. franchise.

, short for Records of Extraordinary Dimensions, will spotlight red-colored heroes and takes over Super Sentai’s slot in TV Asahi’s Super Hero Time block. For viewers following ZEZTZ abroad, the series itself is the first Kamen Rider entry to simulcast globally, with English-subtitled episodes streaming weekly on Shout! TV’s TokuSHOUTsu YouTube channel.

Release plans for the film outside Japan are not yet confirmed, but the theatrical date gives fans a clear target for the big-screen debut of Sono Shunta’s Kamen Rider.

Who Is Kamen Rider Mugen, Shuma Kumon

Shuma Kumon steps into the summer crossover as the newest Rider on the block. Kamen Rider Mugen Sono Shunta portrays Shuma Kumon, the cousin of Kensei Odaka, also known as Nox, from Kamen Rider ZEZTZ. , which seeks the power of dreams, Kumon fixates on daydreams.

He aims to seize influence over both the waking world and the realm of sleep. With the Daydream Capsem, he transforms into Kamen Rider Mugen. A new trailer and visual already show the idol in action in this role.

Whether he stands as the film’s central villain is not yet confirmed.

In short, Shuma Kumon Kamen Rider Mugen draws strength from daydreams rather than slumber. That focus sets up a clear contrast to the series’s lucid-dream hero. As a Kamen Rider ZEZTZ character, Kumon seeks power by turning wandering thoughts into a trigger for change.

The Daydream Capsem gives him a direct path from reverie to armored form. The announcement frames his plan as control over the waking and sleeping worlds. That puts him at the fault line where dream and reality meet.

It also ties him to Nox through family bonds, adding a personal edge to any clash.

Shuma’s debut arrives in Kamen Rider ZEZTZ and Super Space Sheriff Gavan Infinity W Hero Summer Movie 2026, which premieres in Japan on July 24. D. The banner features red-colored heroes and takes over Super Sentai’s spot in TV Asahi’s Super Hero Time block.

International release details for the film are not yet confirmed. For viewers abroad seeking context, Kamen Rider ZEZTZ is the first Rider series with a global simulcast, streaming weekly with English subtitles on Shout! TV’s TokuSHOUTsu YouTube channel.

When and Where to Watch the ZEZTZ and Gavan Infinity Movie

Mark your calendars for July 24, 2026. The crossover film uniting this season’s Kamen Rider ZEZTZ and Super Space Sheriff Gavan Infinity will premiere in Japan on that date. Billed as the W Hero Summer Movie 2026, it serves as the Kamen Rider ZEZTZ summer movie 2026 crossover with Gavan Infinity.

, which stands for Records of Extraordinary Dimensions. D. takes over Super Sentai’s former slot in TV Asahi’s Super Hero Time block and spotlights red-colored heroes.

Specific release plans for regions outside Japan are not yet confirmed, and no streaming or home video details have been shared in the announcement.

If you want to catch up before the film, the ZEZTZ TV series is easier to watch than ever. It is the first Kamen Rider series with a global simulcast, with an English-subtitled version airing weekly on Shout! TV’s TokuSHOUTsu YouTube channel.

That Kamen Rider ZEZTZ English simulcast follows Baku Yorozu, an ordinary young man who uses lucid dreaming to become a secret agent in a battle against the Nightmare. The simulcast confirms weekly access to the show, but it does not announce film availability. International screenings or streams for the crossover are not yet confirmed.

LK member Sono Shunta. He portrays Shuma Kumon, the cousin of Kensei Odaka, also known as Nox. Kumon fixates on daydreams to gain influence over both waking and sleeping worlds.

Using the Daydream Capsem, he transforms into Kamen Rider Mugen. A new trailer and a visual show the idol in action in the role. Whether he serves as the main villain is not yet confirmed.

Fans in Japan will see him on July 24, with further regional details to come. D.

Related: Kimi Wo Aisuru Cast Announcement.

Source: Crunchyroll