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Roujin Z

Roujin Z is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Roujin Z rather than just read about it. In short: Roujin Z (Japanese: 老人Z, Hepburn: Rōjin Zetto; lit. 'Old Man Z') is a 1991 Japanese anime science fiction action thriller film directed by Hiroyuki Kitakubo and written by Katsuhiro Otomo. The animation for Roujin Z was produced by A.P.P.P..

Roujin Z — main illustration
Roujin Z — illustration

Key takeaways

  • Roujin Z belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Roujin Z to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Roujin Z from memory before moving on to harder problems.

Reference excerpt

Roujin Z (Japanese: 老人Z, Hepburn: Rōjin Zetto; lit. 'Old Man Z') is a 1991 Japanese anime science fiction action thriller film directed by Hiroyuki Kitakubo and written by Katsuhiro Otomo. The animation for Roujin Z was produced by A.P.P.P..

Plot Roujin Z is set in early 21st-century Japan. A group of scientists and hospital administrators, under the direction of the Ministry of Public Welfare and led by lead programmer Mr. Hasegawa, have developed the Z-001: a computerized hospital bed with robotic features. The Z-001 takes complete care of the patient: it can dispense food and medicine, remove excretory waste, bathe and exercise the patient lying within its frame. The bed is driven by its own built-in nuclear power reactor—and in the event of an atomic meltdown, the bed (including the patient lying within) would become automatically sealed in concrete. The first patient to be "volunteered" to test the bed is an 87-year-old dying widower named Kijuro Takazawa. He is an invalid who is cared for by a young nursing student named Haruko. The electronic elements within the Z-001 somehow manage to transcribe Takazawa's thoughts through Haruko's office computer, and he uses the communication to cry for help. Although she objects to such treatment of elderly patients, Haruko begrudgingly seeks the aid of a group of computer hackers in the hospital's geriatric ward to create and install a vocal simulation of Takazawa's deceased wife Haru in the Z-001. However, once Takazawa wishes to go to the beach near Kamakura to relive his happier times with Haru, the Z-001 detaches itself from its moorings and escapes from the hospital with the man in its grasp. Haruko's fears are then justified, as it is discovered that the bed is actually a government-designed, experimental weapons robot. Once the Ministry learns of the bed's escape, their field representative Mr. Terada and Mr. Hasegawa decide to give chase in the latter's corporate helicopter, only for Haruko to force her way in as it takes off. The bed incorporates multiple machines, including cars and excavators, into itself while using Haru's voice to argue with Terada, agreeing to return to the hospital as it rampages into the last tunnel on the road to the beach. Hasegawa and Terada argue upon landing, while Haruko and the elderly hackers (working via radio link) successfully persuade the bed to release Takazawa. The bed, however, continues its rampage. Hasegawa then reveals a more advanced prototype of the Z-001, commanding it to subdue the bed while he prepares a cybernetic ambulance to take Takazawa to the hospital, only for the ambulance to malfunction with Takazawa inside. Terada works to disconnect and smash the bed's peripherals and safely escort Takazawa onto the beach, while the hackers are able to program the Haru simulacrum to help Haruko destroy the bed's chip core by blowing up an oxygen tank. In her dying moments, the Haru simulacrum promises a despondent Takazawa she will see him again. They watch the sunset, while unbeknownst to everyone, a cat runs off with the chip core's remnants. In the epilogue, Hasegawa is arrested and Terada says the Ministry will not comment until the trial (though he notes documents on the bed and ambulance have been leaked, implied to be Haruko's doing). The reassembled bed makes a surprise visit to the hospital, this time much larger (with the large Kamakura Buddha incorporated in her upper body) and as willing as ever to take Takazawa to the beach, much to his delight.

Cast

Themes In his review of Roujin Z, Tony Rayns stated the film focuses on three primary issues: health care for the elderly, the stand-off between traditional values and modern technology and the Right's covert plans to re-militarise Japan.

Production The animation for Roujin Z was produced by A.P.P.P. in association with other companies including Movic, Sony Music Entertainment Japan, Aniplex and TV Asahi. The film was directed by Hiroyuki Kitakubo, who previously directed the "A Tale of Two Robots" segment in the APPP anthology film Robot Carnival. Katsuhiro Otomo provided the film's story and screenplay. The characters were designed by Hisashi Eguchi, the manga artist known for Stop!! Hibari-kun!. He used his now current wife as a model for Haruko. Eguchi also played part in some of the film's animation, such as its smoke effects, alongside key animator Takeshi Honda. Both Otomo and Mitsuo Iso were responsible for the mechanical designs. Satoshi Kon acted as the film's art director and set designer. Kon previously wrote the script for Otomo's live-action black comedy World Apartment Horror, though Roujin Z was the first anime on which Kon worked. Otomo opted to not direct the film, as he was more eager to work on World Apartment Horror. The musical score was composed by Bun Itakura. Anime localization pioneer Carl Macek was the film's sound design producer. The closing song "Hashire Jitensha" (走れ自転車; lit. 'Run, Bicycle Run') is performed by Mishio Ogawa.

Soundtrack

… excerpt ends here. Continue reading the full article.

Worked examples

Example 1 — a first encounter with Roujin Z

Start with the simplest possible case. Write down what Roujin Z claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Roujin Z before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Roujin Z ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Roujin Z

In research
Roujin Z appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Roujin Z in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Roujin Z is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1991 anime films, 1991 films, 1991 manga, so understanding it makes those chapters shorter.
In everyday life
Look for Roujin Z outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Roujin Z in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Roujin Z means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Roujin Z out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Roujin Z in simple terms?

Roujin Z (Japanese: 老人Z, Hepburn: Rōjin Zetto; lit. 'Old Man Z') is a 1991 Japanese anime science fiction action thriller film directed by Hiroyuki Kitakubo and written by Katsuhiro Otomo. The animation for Roujin Z was produced by A.P.P.P..

Why does Roujin Z matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Roujin Z?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Roujin Z.

Tags

  • 1991 anime films
  • 1991 films
  • 1991 manga
  • 1991 science fiction films
  • Action anime and manga
  • Animated action films
  • Animated films set in Japan
  • Animated films set in the 21st century
  • Animated films set in the future
  • Animated thriller films
  • Aniplex
  • Central Park Media

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