Check out this video of a real life Samurai Isao Machii. He hold various records in cutting stuff. This guy is just awesome, check out his accuracy.

The.most.awesome.video.ever!

Be prepared to be humbled!

SteelAttack said:

Holy shit. He carries Yagyu Jubei's blood in his veins. 

 There are Rumours that Jubei was secretly a ninja, did you know that?

He is like the love child of Yagyu Jubei and Miyamoto Musashi.

No a different Jubei, this one actually excisted!

According to Wiki

Yagyū Jūbei Mitsuyoshi (柳生 十兵衞 三厳, 1607?–April 21, 1650) is one of the most famous and romanticized of the samurai in Japan's feudal era.

Very little is known about the actual life of Yagyū Mitsuyoshi as the official records of his life are very sparse. Yagyū Jūbei Mitsuyoshi (born "Shichirō") grew up in his family's ancestral lands, Yagyū no Sato, now in Nara. He was the son of Yagyū Tajima no Kami Munenori, master swordsman of the Tokugawa Shoguns, especially Ieyasu and Tokugawa Iemitsu, who prized Munenori as one of his top counselors. Munenori fought for the first Tokugawa shogun, Tokugawa Ieyasu, at the Battle of Sekigahara, expanding the Shogun's territory. For his efforts, Munenori was made the Shogun's sword instructor and a minor daimyo or provincial ruler. Munenori would go on to train three successive Shoguns: Ieyasu, Hidetada, and Iemitsu.

In 1616, Mitsuyoshi became an attendant in the court of the second Tokugawa Shōgun, Tokugawa Hidetada and became a sword instructor for the third Tokugawa Shōgun, Tokugawa Iemitsu, occasionally filling his father's role. Records of Yagyū Jūbei, however, do not appear again until 1631, when Jūbei, by now regarded as the best swordsman from the Yagyū clan, is summarily and inexplicably dismissed by the Shōgun either due to Jūbei's boldness and brashness or his decision to embark on a Warrior's Pilgrimage (武者修行, Musha Shugyō). His whereabouts are then unknown over the next twelve years--even the Yagyū clan's secret chronicles, which contained lengthy passages on numerous members, has little solid information on Jūbei, particularly during these years--until Yagyū Jūbei reappears at the age of 36 at a demonstration of swordsmanship in front of the Shōgun. Following this exhibition, Jūbei was reinstated and serves for a short time as a government-inspector (御所印判, Gosho Inban), taking control over his father's lands until Yagyū Tajima no Kami Munenori's death in 1646. Jūbei also authored a treatise known as Tsukimi no Sho (月見の諸) or The Text of Looking at the Moon, outlining his school of swordsmanship as well as teachings influenced by the monk Takuan Sōhō who was a friend of his father's. In this work he briefly provides hints on his whereabouts during his absence from Edo Castle from 1631 to 1643 - traveling the countryside in perfecting his skills.

Due to Yagyū Jūbei's disappearance and the fact of no existing records of his whereabouts, his life has bred speculation and interest and was romanticized in popular fiction. After residing in Edo for several years after his father's death, Jūbei left his government duties and returned to his home village where he died in early 1650 under uncertain circumstances. Some accounts say he died of a heart attack; others say he died while falcon hunting; some during fishing, while still others presume he was assassinated by his half-brother's attendants.

Jūbei was laid to rest in a small village called Ohkawahara Mura, nearby his birthplace, which was also the resting grounds for his half-brother, Yagyū Tomonori. In keeping with tradition, Yagyū Jūbei was buried alongside his grandfather, Yagyū Muneyoshi, and was survived by two daughters and his brother Munefuyu, his successor. Jūbei was given the Buddhist posthumous name of Sohgo.

Jūbei as a ninja

Although a samurai, Yagyū Jūbei in popular culture is occasionally depicted with ninja traits; during the missing twelve years of his life, he could have been doing secret missions for the Shogun. Also, his family did come from the same region, Iga, as the ninja, and his father was known to have ties to the intelligence networks. Note, however, that Ninja Scroll, Ninja Resurrection, and Jubei-chan: The Ninja Girl do not show him as a ninja. The "ninja" in Ninja Scroll is about a different character; the other two series have had their title changed for American release and did not originally mention ninja.

Link

SteelAttack said:

And now, for his final challenge, Machii Isao wil attempt to cut an object that hasn't been seen before, an object so small that it is believed to be a legend: Iga's penis.

Will he succeed?

Actually the next step will be cutting a steel plate. Not sure when he will do that, but can't wait.