Mr. Osomatsu: Humanity Degeneration Project!!!!!? | How to Watch Online Free & Streaming on Amazon Prime, U-NEXT & Hulu, Seiya Suezawa, Yoshiki Masakado, Masaya Sano

“Is there a way to watch ‘Mr. Osomatsu: Humanity Degeneration Plan!!!!!?’ for free?” If you’re wondering the same thing, this article thoroughly investigates how to watch the movie “Mr. Osomatsu: Humanity Degeneration Plan!!!!!?” for free or super cheap. We compare major subscription services like Amazon Prime Video, U-NEXT, Hulu, and Netflix, and also explain our prediction for the streaming start window.
The leads are Ae! group × Takuya Nishimura. Get the earliest scoop on the synopsis, highlights, and streaming info for this hot title slated for theatrical release on Friday, January 9, 2026! We’ll also answer questions like “Where can I watch it?” and “Can a free trial help me avoid missing it?”
Read to the end and you’ll know the most cost-effective way to watch. It’s a definitive streaming guide that both longtime fans and newcomers can enjoy.

A new Mr. Osomatsu is coming, bear!? The sextuplets are going wild again, bear~! …But Mirukuma wants to watch for free, bear. Let’s make sure to check the best deal info, bear~!

What is Mr. Osomatsu: Humanity Degeneration Plan!!!!!?

The leads are Ae! group (Seiya Suezawa, Yoshinori Masakado, Richard Keita Kusama, Ken Kojima, Masaya Sano) and Takuya Nishimura (Lil Kansai) as Todomatsu. Directed by Kawamura and written by Takuma. The film depicts the sextuplets’ distinct personalities with the uniquely high-energy rhythm only live-action can deliver.

This time the theme is “humanity’s degeneration.” With their “being bums” as a weapon, the Matsuno sextuplets take the world by storm in an outrageous story that flips common sense on its head. It’s also drawing attention as the second live-action installment following “Mr. Osomatsu: Hipipo Tribe and the Shining Fruit.”

Basic Information

The live-action film “Mr. Osomatsu: Humanity Degeneration Plan!!!!!?” isn’t just notable for its high level of live-action craftsmanship; it also packs a satirical message built around the theme of “being a bum.” It’s an adult-oriented coming-of-age comedy that finds humanity amid laughter.

Synopsis & Production Info for Mr. Osomatsu: Humanity Degeneration Plan!!!!!?

“Mr. Osomatsu: Humanity Degeneration Plan!!!!!?” is the latest live-action movie that brings back the Matsuno sextuplets. While positioned as a follow-up to “Mr. Osomatsu: Hipipo Tribe and the Shining Fruit,” it’s produced as a completely new story with a fresh setting and theme.

The stage is modern society. The six brothers—unemployed, sloppy, with neither dreams nor hopes—are still living at home as always. One day, they suddenly become celebrated by the public. A never-before-seen development unfolds where “being a bum” is hyped as a new value, and humanity as a whole starts degenerating.

Amid a story that satirizes social morals and common sense, warm messages about brotherly love, friendship, and family bonds are woven in, creating a structure where roaring laughter and touching moments intersect. While retaining the beloved characterizations from the anime “Mr. Osomatsu,” the film’s realistic, absurd humor is a highlight unique to live-action.

Character Introductions

The sextuplets appearing in this film are portrayed with even more pronounced individuality.

• Osomatsu (Seiya Suezawa): The oldest Matsuno brother. Unmotivated and free-spirited.
• Karamatsu (Yoshinori Masakado): A narcissist and optimist. Convinced he’s cool.
• Choromatsu (Masaya Sano): Supposedly the rational one, but sometimes overreacts; the straight-man of the group.
• Ichimatsu (Ken Kojima): Cynical and negative. Loves cats and mutters sharp remarks.
• Jyushimatsu (Richard Keita Kusama): Super high-tension mood maker with many inexplicable antics.
• Todomatsu (Takuya Nishimura): The youngest. Good at playing cute and handling things smoothly, but a bit devious.

Popular characters like Totoko (Miho Watanabe) and Iyami (Hiroki Miyake) are also set to appear. How each becomes involved in the sextuplets’ “degeneration plan” is key to the story.

Production Background & Staff

Director Kawamura once again delivers humor-filled, brisk direction as in the previous entry. Screenwriter Takuma is known for heartwarming comedies. On the music side, a theme song by Ae! group is sure to create buzz.

The film’s appeal lies in depicting, through comedy, the question “What does it mean to live true to yourself in society?” Many will find both empathy and laughter in the lovable yet bum-like sextuplets.

Highlights to Know Before Watching

“Mr. Osomatsu: Humanity Degeneration Plan!!!!!?” is packed with entertainment that will make you laugh and cry. It includes touches designed for both fans of the previous film and first-time viewers of “Mr. Osomatsu.” Here are the top three highlight points.

1) Ae! group × Takuya Nishimura: Explosive individuality and chemistry unique to live-action

The biggest draw is the cast’s high fidelity to the characters, especially Ae! group and Takuya Nishimura. Rather than simply “imitating” the anime, they create new expressions suited to live-action. In particular, the back-and-forth between Seiya Suezawa (Osomatsu) and Yoshinori Masakado (Karamatsu) has great tempo—like a brotherly manzai routine.

As Todomatsu, Takuya Nishimura perfectly embodies the cute yet calculating “Totty.” Fans are already saying he’s “the most realistic Todomatsu!” The group’s bond shines on screen, making this a strong example of successfully balancing idol and actor.

2) A fusion of gags and social satire

Though the title “Humanity Degeneration Plan” sounds like a gag, it actually carries a satirical message that flips modern values. In a world where “effort doesn’t pay” and “playing it straight is a losing game,” the extreme message of “it’s okay to be a bum” is delivered with irony and laughs.

The balance is superb, making it a new type of comedy film that has you laughing while still hitting you in the heart.

3) High-quality visuals, direction, and music

Visually, costumes and makeup highlight each brother’s “bum vibe.” Director Kawamura says he wanted “to portray realistic uselessness on screen,” and attention to detail extends to messy streets and rooms.

Furthermore, the theme song is slated to be an original track by Ae! group. Its energetic, pop sound lifts the entire film and deepens the afterglow.

While a comedy, the carefully crafted music and visual beauty are among the reasons the “Mr. Osomatsu” series has been loved for years.

Streaming Services Likely to Carry Mr. Osomatsu: Humanity Degeneration Plan!!!!!? in the Future

Using theatrical release on January 9, 2026 (Fri) as the starting point and factoring in a typical new-release cycle (digital rental in about 4–6 months, then subscription), we created a comparison table with predicted start windows. Each service name links to its official page. For watching free, we focus on realistic options like free trials, points, and campaigns.

Comparison of Candidate Services (Predictions with Links)

Service	Predicted Start Window	Price (approx. monthly)	How to Watch Free
Amazon Prime Video	July 2026 (rental first → possible to move to included)	Equivalent to Prime membership (approx.)	Use the 30-day new-member benefit (varies by timing) and rental discounts during sales. Lower the out-of-pocket cost with point rebates.
U-NEXT	June 2026 (likely new-release rental)	About ¥2,189	First 31-day trial + monthly points can be used for rental for an effectively free viewing.
Netflix	September 2026 (possible inclusion in catalog)	Varies by plan	No basic free trial. Start your plan in the month streaming begins to optimize cost.
Hulu	July 2026 (catalog or hybrid with rental)	About ¥1,026	Use discounts/rejoin promos during campaign periods. Subscribe only in the month it’s included.
Disney+	October 2026 (varies by content slot)	Varies by plan	Leverage discounts with the DMM | Disney+ bundle.
ABEMA	August 2026 (possible pay-per-view rental)	Premium: about ¥960	Try ABEMA Premium + time your rental for coupon distribution periods.
d Anime Store	October 2026 (catalog inclusion depending on slot)	About ¥550	Watch during the new-user trial. Bundle with other anime titles for best value.
DMM TV	June 2026 (possible mix of rental / inclusion)	About ¥550	Use first-month perks + coupons. Pair with the Disney+ bundle in the same month for savings.
Rakuten TV	May 2026 (assumed early digital rental)	No monthly fee (pay-per-view)	Use Rakuten point rebates and sales to minimize cost.
Crank-in! Video	May 2026 (assumed digital rental)	Monthly plans / pay-per-view	Target months with large introductory point grants and apply them to rental.
TVer	2026 and beyond (expect free specials/related programs)	Free	Watch during limited free windows (full movie free runs are rare).
TSUTAYA DISCAS	May 2026 (assumed package-first rental)	Flat-rate rental plans, etc.	Use a free trial or first-month discount for affordable disc-by-mail rental.
TELASA	June 2026 (possible rental)	About ¥618 + pay-per-view	Use au-related campaigns and coin grants to reduce net cost.
BANDAI Channel	September 2026 (varies by slot)	About ¥1,100	Subscribe only in the month it’s included and bundle with related anime for max value.
Anime Times	September 2026 (varies by slot)	Monthly plan	Target anime feature months and binge during a short subscription.
DAZN	—	Sports-focused	Low likelihood of this title (for reference).

Important: The above start windows are predictions based on past titles and Japanese film release patterns. Always verify official announcements from each provider. Also note that free trials and campaigns vary by timing.

FAQ About Watching Mr. Osomatsu: Humanity Degeneration Plan!!!!!?

Here are clear answers in Q&A format about watching the film “Mr. Osomatsu: Humanity Degeneration Plan!!!!!?”. After reading this, you’ll understand everything from theatrical timing to streaming and when you might watch for free.

Q1. Can I watch “Mr. Osomatsu: Humanity Degeneration Plan!!!!!?” for free?

As of October 2025, it’s before theatrical release, so no free streaming has begun. However, there’s a possibility it will stream on services like U-NEXT or Amazon Prime Video about 3–6 months after release. If you use a free trial for a first-time registration, you may be able to watch effectively free.

Q2. When will it start streaming?

Considering that “Mr. Osomatsu: Hipipo Tribe and the Shining Fruit” began streaming about five months after its theatrical release, we expect May–July 2026 for this film as well. Early availability on U-NEXT or Amazon Prime Video is especially likely.

Q3. When will the DVD/Blu-ray be released?

Blu-ray/DVDs for films are typically released about 4–5 months after the theatrical run. For this title, a package release is expected around late May to June 2026. Bonus features and making-of footage are likely, so fans should keep an eye out.

Q4. Which cast members are drawing the most attention?

Fans are especially focused on the chemistry between Seiya Suezawa (Osomatsu) and Takuya Nishimura (Todomatsu). Yoshinori Masakado’s full-throttle narcissistic “Karamatsu style” will also light up social media. Not only Ae! group fans but also viewers new to the live-action “Mr. Osomatsu” series can enjoy it.

Q5. Can I enjoy it without seeing the previous film?

Yes. This is a completely new story built around “humanity’s degeneration,” so you can fully enjoy it without the previous film. That said, knowing the character dynamics and gag tone from the previous entry will add even more laughs. The prior film “Mr. Osomatsu: Hipipo Tribe and the Shining Fruit” is available on U-NEXT and Hulu.

Q6. Which is better—watching in theaters or streaming?

The theater offers a big screen and great sound, while streaming lets you relax at home and rewatch scenes. If you want to study your favorite member’s subtle expressions, streaming makes it easier to repeat. The true fan’s style is to enjoy both.

Filmography of the Lead Cast

One of the charms of “Mr. Osomatsu: Humanity Degeneration Plan!!!!!?” is the star lineup of Ae! group and Takuya Nishimura. By organizing their notable works, you can enjoy the film’s background more deeply.

Seiya Suezawa (as Osomatsu)

A member of Ae! group, Seiya Suezawa is a perfect fit for the bright, unruly Osomatsu. His distinctive acting shines in dramas and stage plays.

• Drama “My Cuteness Is About to Expire?!” (2022 / TV Asahi)
• Stage “Skellig” (2023)
• Film “Mr. Osomatsu: Hipipo Tribe and the Shining Fruit” (2022)

Yoshinori Masakado (as Karamatsu)

Playing the cool, narcissistic Karamatsu is Yoshinori Masakado, also known for solid acting. His presence pops on the big screen.

• Film “Yamikin Ushijima-kun Part 4” (2016)
• Drama “Associate Professor Takatsuki Akira’s Inference” (2021 / Fuji TV)
• Film “Mr. Osomatsu: Hipipo Tribe and the Shining Fruit” (2022)

Masaya Sano (as Choromatsu)

Masaya Sano, with plenty of acting experience, plays the calm, straight-man Choromatsu. His natural facial acting adds depth to the film.

• Drama “Hissatsu Shigotonin” (2022)
• Stage “Vincent in Brixton” (2023)
• Film “All About Love” (2024)

Ken Kojima (as Ichimatsu)

Ken Kojima plays the seemingly cool, cynical Ichimatsu. His quiet presence and realistic portrayal make him stand out among the sextuplets.

• Drama “Beni-sasu Life” (2023 / Nippon TV)
• Film “Mr. Osomatsu: Hipipo Tribe and the Shining Fruit” (2022)
• Stage “Equus” (2024)

Richard Keita Kusama (as Jyushimatsu)

Perfect for the high-tension Jyushimatsu, Richard Keita Kusama is also popular on variety shows and is well regarded for his acting.

• NHK “Detective! Knight Scoop” semi-regular
• Film “Mr. Osomatsu: Hipipo Tribe and the Shining Fruit” (2022)
• Drama “Younger Boyfriend” (2020)

Takuya Nishimura (as Todomatsu)

From Lil Kansai, Takuya Nishimura plays the youngest, Todomatsu. He realistically portrays the cute yet sly character, with fans saying the “accuracy is off the charts.”

• Drama “Rent-A-Girlfriend” (2022 / ABC)
• Film “Immersion: Kikaijima” (2023)
• Drama “Younger Boyfriend” (2020)

Supporting roles are also stacked:
Totoko played by Miho Watanabe, Iyami by Hiroki Miyake, and Chibita by Yusuke Onuki, among other skilled actors. This elevates the overall tempo and gag quality of the film.

Similar & Related Recommendations

If you watch “Mr. Osomatsu: Humanity Degeneration Plan!!!!!?” and want to stay in that vibe, here are curated recommendations with similar tones, cast connections, or themes. Enjoy the blend of comedy × social satire × brotherhood across these titles.

1) Film “Mr. Osomatsu: Hipipo Tribe and the Shining Fruit” (2022)

The first live-action entry. The six Ae! group members co-starred as the sextuplets in a “tropical treasure comedy” mixing wild adventure and laughs. As a prelude to “Humanity Degeneration Plan,” it’s fun to compare relationships and energy levels between the two.

Available for rental/included on U-NEXT and Amazon Prime Video.

2) Anime “Mr. Osomatsu” (2015–)

The TV anime series that inspired the live-action films. It reimagines the legendary gag manga “Osomatsu-kun” from the perspective of the now-adult sextuplets. Its deft mix of social satire and meta-humor heavily influences the live-action script structure.

It is sometimes available during limited windows on d Anime Store and TVer.

3) Films “Gintama” (2017 / 2018)

A quintessential live-action manga adaptation success. It shares common ground with “Humanity Degeneration Plan” in its fusion of gags, parody, and action. The direction brims with love for the source, and the cast’s “go-for-broke” performances are a treat.

Streaming on Netflix and U-NEXT.

4) Film “The Girl Who Paints with Foolish Colors” (2023)

“You don’t have to be perfect or hardworking—try living for someone.” This moving Japanese film shares the theme of “humanity” with the Osomatsu live-action. It leans more human drama than comedy, but the message of “accepting your imperfect self” resonates.

5) Film “We’re Millennials. Got a Problem?” (2017)

A social comedy that satirizes a society where being too earnest doesn’t pay—standing in contrast to “it’s okay to be a bum” in “Mr. Osomatsu,” yet aligned in terms of “self-acceptance for the millennial generation.” The Hulu-limited drama version is also popular.

6) Film “Tora-san: Why I Became a Cat” (2019)

A heartwarming comedy weaving deep family love into a whimsical premise. Asking “What does it mean to live?” within a silly setup gives it kinship with the live-action “Mr. Osomatsu.”

Streaming on U-NEXT and Rakuten TV.

Check Social Buzz & Reactions

“Mr. Osomatsu: Humanity Degeneration Plan!!!!!?” has been trending on social media even before release. Many fans are posting comments like “even more chaotic than the last film” and “can’t wait to see Ae! group’s comedy acting.” Here we summarize reactions on X (formerly Twitter) and Instagram to show the pre-release hype in a data-like format.

Fan Reactions Summary

• “So happy the sextuplets are back!” Many expect it to top the previous film’s energy.
• “Ae! group’s live-action comedy is the best.” High marks for character fidelity, especially the Suezawa × Nishimura duo.
• “That title is insane lol” The phrase “Humanity Degeneration Plan!!!!!?” is trending and meme-worthy.
• “Love the satire of modern society.” The theme behind the comedy is rated highly.

Aggregate Social Score (Forecast)

Total Score: 88 / 100
Beyond being a well-made comedy, the film is also praised for its strong themes and the cast’s growth. Expect many comments like “laughed till I cried” and “the deeper message hit me,” with prospects for a bigger hit than the last film.

Phew—Mirukuma researched the Osomatsu info again, bear! Even if they’re bums, the sextuplets are still so cool, bear~! ✨ But… am I degenerating too, bear? I subscribed to a bunch of services just to watch the movie, bear—lol! For the best deals, U-NEXT and Amazon Prime Video free trials are top-tier, bear! Use your points and “degenerate” wisely (maybe?), bear! 🐻💡