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From 武神館兜龍 Bujinkan Toryu by Toryu

Ninja Jumping often need to escape by leaping over obstacles or walls, grabbing onto house eaves, or dodging sideways in the blink of an eye to hide from enemies. They may also have to jump across rivers too wide for pursuers or leap from low to high places to evade capture. When infiltrating enemy castles or houses, the ability to fly like a bird would render defenses and ambushes nearly irrelevant.

Ninja techniques include the Six Jumping Methods, encompassing six types of jumps:

1. Forward Jump (Mae-tobi)
2. Backward Jump (Ushiro-tobi)
3. High Jump (Taka-tobi)
4. Long Jump (Haba-tobi)
5. Side Jump (Yoko-tobi)
6. Diagonal Jump (Naname-tobi)

The standards are a high jump of 9 shaku (2.7 m), a long jump of 18 shaku (5.4 m), and a downward jump of 50 shaku (15 m). These figures likely represent ideal targets for ninja training. Beyond these, jumps were performed in pairs or trios or with tools.

忍びの跳躍訓練 Shinobi no Chōyaku Kunren (Ninja Jump Training)

To leap effectively, one must be light. Ninja regularly used slimming medicines made from wild coix seeds, ate tofu as a staple to maintain nutrition without gaining fat, and underwent rigorous, balanced daily training. This reduced excess fat, tightened muscles, and developed a flexible, resilient, steel-like physique.

During intense physical training, ninja reportedly wore deer leather undergarments. Sweating from vigorous movement wetted the leather, causing it to cling and constrict the body. Enduring this discomfort during training gradually slimmed the body and reduced sweating, as body odor could betray a ninja’s presence.

Jump training involved sowing hemp seeds in a plot of land and waiting for germination. Hemp grows rapidly, stretching taller daily. Ninja practiced jumping over it—forward, backward, sideways, and diagonally. Initially easy, the task grew harder as the hemp grew. Such training for about three years was necessary to become a competent ninja.

二人組人馬興業停止令 Futarigumi Jinba Kōgyō Teishi Rei (Two-Person Horseback Technique)

The term “ninba” (human horse) refers to a mid-Edo period spectacle, akin to modern circus acts, but I believe it originated as a ninja technique for leaping over high walls. Historical records claim it was devised in the Genroku era (1688–1704) for performances, but I suspect it’s older.

In Kyoto, a performer named Numa from Kinbuya Tabee, during the Genroku era, went to Edo, joined the equestrian Sasaki Heima’s school, and allegedly created the ninba technique inspired by equestrian skills. However, equestrianism and ninba share no technical similarities.

The Rakushu Genbun Taiheiki, Volume 4, mentions Sasaki Heima’s fame and ninba’s ability to astonish audiences. On July 24, Genbun 5 (1740), ninba performances were banned again. Though presented as derived from equestrianism, I believe destitute ninja, no longer receiving stipends, used their trained ninba skills in performances. Records show ninba was banned three times.

The Seihōroku, in an entry for April, Hōei 4 (1707), notes: “Recently, various acrobatics called ninba have gathered crowds, leading to imitators and potential misconduct, so ninba and other acrobatic performances are henceforth prohibited.” Another ban was issued in Genbun 5 (1740), and on May 11, Kanpō 2 (1742), the Asakusa-ji Diary records the dismantling of an acrobatics booth at Asakusa Temple due to concerns that “undesirable people learning and using it could lead to trouble.” The bans were issued because ninba could be misused by thieves if publicly displayed.

Was ninba such a shocking technique to warrant such scrutiny?

二人組人馬の技法 Futarigumi Jinba no Gihō (Two-Person Ninba Technique)

Jumping over a 10-meter-high wall or obstacle without tools is difficult, but with the two-person ninba technique, ninja could soar like birds (see frontispiece illustration).

One person stands with another on their shoulders, facing a high wall. For stability, the upper person places their feet on the lower’s shoulders, firmly grips the lower’s head, and crouches to avoid falling, timing the takeoff. The lower person holds the upper’s legs for stability. Both synchronize their breathing, sprint toward the wall or obstacle at tremendous speed, and at the optimal distance, the upper person kicks off the shoulders to leap, while the lower throws the upper’s legs upward. With the momentum of the sprint and elastic body movement, the black shadow arcs through the air like a projectile, clearing the obstacle.

For house infiltration, once one ninja lands inside, they throw a climbing rope outside, easily pulling the other over the wall (see illustration).

三人組人馬の技法 Sanningumi Jinba no Gihō (Three-Person Ninba Technique)

For obstacles over 10 meters that a two-person ninba cannot clear, a three-person technique is used. One person sits on a stone 4–5 meters from the obstacle, facing away, knees aligned horizontally. A second person stands naturally on the seated person’s back. The jumper starts a sprint from as far as 10 meters away, steps onto the seated person’s knees as a launch platform, and leaps upward. Just before, the seated person supports the jumper’s soles or thighs, and the standing person grips the jumper’s torso, all synchronizing to hurl the jumper high over the obstacle (see frontispiece illustration).

These flight techniques are most dangerous during landing, and until mastered, they reportedly cause frequent fractures, sprains, and bruises. I once saw the Soviet Russian Ballet perform a Cossack dance where dancers leaped high from the stage’s back, soaring over others to land at the front, using a method nearly identical to the three-person ninba. This technique likely originated in mainland China, spread north to the Cossacks, and eastward to Japan with ninjutsu. The claim it was devised from equestrianism in the Genroku era is likely a ninja cover story or jest.

Hop, Step, Jump

With a four-person team, jumping onto a 3–4-meter wall is simpler. One person leans against the wall, hands on it, head lowered, standing naturally. A second person firmly grasps the first’s waist, braces their feet, tilts their head right or left, and flattens their back. A third person hugs the second’s legs, crouches low, and flattens their back. The jumper sprints, using a triple-jump approach, stepping on the first, second, and third person’s backs, then leaping from the third to grab the wall’s edge (see frontispiece illustration).

Tool-Assisted Methods

Using a sturdy long board and a stone, create a seesaw. The jumper stands on one end, and another person jumps from their shoulders onto the raised end, launching the jumper over the wall. Pole vaulting with a spear or pole, or swinging across with a climbing rope like a pendulum, were also used.

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This above about Ninja Jumping techniques was just one section translated from Japanese to English from the book…

忍術の研究 Ninjutsu no Kenkyū by 名和弓推 Yumio Nawa

The post History of Ninjutsu: Ninja Jumping Techniques appeared first on 武神館兜龍 Bujinkan Toryu.…

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From 武神館兜龍 Bujinkan Toryu by Toryu

Ninjutsu history begins with terms like 忍者 Ninja and 忍法 Ninpō, the most commonly accepted in modern times, which are newly coined words from the 昭和 Shōwa era (1926–1989). The term 忍術使い Ninjutsu Tsukai (Ninjutsu user) is a newly coined word from the 明治 Meiji (1868–1912) and 大正 Taishō (1912–1926) eras. In the 江戸 Edo period (1603–1868), the representative terms were 忍び Shinobi or 忍びの者 Shinobi no Mono (Shinobi person), and the techniques were called 忍術 Ninjutsu.

Using the term お庭番 Oniwaban (garden guard) in the same way as Shinobi no Mono is a mistake. Oniwaban is a job title in the shogunate, but since Shinobi were assigned to this role, the shogunate’s covert agents were called Oniwaban. However, it is strange for television or movies to feature Shinobi as the Oniwaban of the 上杉家 Uesugi family or the 伊達家 Date family. The names for Shinobi varied across different domains and regions.

In general, even in China, the homeland, the names for Shinobi varied across different regions with various designations.

• 遊子 Yūshi (In 大橋 Ōhashi, Shinobi are called Yūshi. Does this mean one who travels between enemy and ally, or one who takes the form of a playful figure?)
• 行人 Kōjin (In 陰経 Inkyō, Shinobi are called Kōjin. Like Yūshi, it likely means a person who goes back and forth between enemy and ally.)
• 遁形 Tongyō (In 五雑爼 Gozassho, they are called Tongyō. Shinobi are not combatants; their essence is to gather information and escape, meaning a person who masters the form of passing through.)
• 間 Kan (In the state of 具 Chu, they were called Kan. The meaning of Kan is as previously described, and from this, Japan created the term 間者 Kanja [spy].)
• 課 Saku (In the 春秋 Spring and Autumn period, they were exclusively called Saku. The literal meaning of Saku includes “to spy.” It refers to the role of spying on and probing the enemy’s situation.)
• 遊偵 Yūtei, 細作 Saisaku, 姦細 Kansei, 好細 Kōsei (After the Warring States period, in China, Shinobi were called Yūtei, Saisaku, Kansei, Kōsei, etc. This likely means traveling between enemy and ally in a playful form to spy on the enemy’s situation, probing the enemy’s situation in detail and reporting to the general, who then uses this to devise detailed strategies. Additionally, calling Shinobi 森細 Seisai or 妊細 Ninsei likely means a job that appears ordinary on the surface but involves deep, cunning schemes behind the scenes.)

In ancient China, they were called as above, but after being introduced to Japan, from the Muromachi period (1336–1573) to the early Warring States period, they were called:

• 草 Kusa (Grass)
• かまり Kamari (Spy)
• 水彼 Suppa (Water Other)
• 乱破 Rappa (Chaos Breaker)
• 突破 Toppa (Break Through)
• 出抜 Denuki (Exit Pull)
• うかみ処 Ukami Dokoro (Spy Place)

武田玄 Takeda Shingen called Shinobi the 三つの者 Mittsu no Mono (Three Types of People). He divided them into three roles, and collectively referred to them as the 三つの者 Mittsu no Mono (Three Types of People).

… and so on.

上杉謙倍 Uesugi Kenshin called Shinobi 猿 Nokizaru (roof monkeys).

織田長 Oda Nobunaga called Shinobi 製談 Kyōdan (conversers).

In the Tokugawa period, Shinobi themselves used the characters 獺盗 kawai nui (otter thief) to read as Shinobi, or, seemingly disliking the sound of the word Shinobi, they tried to avoid using the character 忍び Shinobi as much as possible. They used terms like:

• 早道の者 Hayamichi no Mono (fast path person)
• 早足組 Hayaashigumi (fast-footed group)
• 忍び目付 Shinobi Metsuke (Shinobi overseer)
• 物聞き Monokiki (listener)
• 黒はばき Kurohabaki (black leg guards)
• 小隼人組 Kohayato Gumi (津軽藩 Tsugaru Domain, a Shinobi group led by 中川小隼人 Nakagawa Kohayato, a 200-koku retainer)
• 鳥組 Tori Gumi (Sendai Domain, a guerrilla unit led by Shinobi 細谷十大夫 Hosoya Jūdayū)

These names make it hard to think of them as groups of Shinobi. Even in modern times, people from Shinobi lineages strongly dislike announcing that their family has Shinobi blood.

If a Shinobi is known to be a Shinobi, they can no longer fulfill their role. In other words, they become useless, and simply being a Shinobi led to discriminatory treatment by ordinary samurai, being shunned, and even having marriage proposals rejected—a dark past they carry. Why this happened will be explained later, but the essence of a Shinobi is inherently such, a matter of fate, and nothing can be done about it.

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This above was just one section translated from Japanese to English from the book…

忍術の研究 Ninjutsu no Kenkyū by 名和弓推 Yumio Nawa

The post History of Ninjutsu: Evolution of Ninja Terms appeared first on 武神館兜龍 Bujinkan Toryu.…

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