天生牙
天生牙
假名：たさか
罗马音：tasaka
Tenseiga
The Tenseiga (天生牙) is a fantasy sword from the anime and manga series InuYasha.
The Tenseiga is special sword in which its power lies in the fact that it can bring the dead back to life. Tenseiga allows a powerful user to see the pall bearer demons that take away the souls of the dead. As Tenseiga has the power to connect to the underworld, these demons can be cut and destroyed by it, allowing the soul to return to the dead's body. As the dead revives, their mortal wounds are healed. It is important to note that Tenseiga cannot really heal the living; it resurrects the dead. The literal translation of the kanji is "heavenly life fang" or "fang born out of heaven", but these are not necessarily accurate representations of the name's actual meaning.
Tenseiga allows its user to see and slay the beings from the underworld, as well as bringing up to 100 beings back to life in one swing. It is later reforged into a weapon capable of killing an opponent in a single blow along with its afformentioned powers of revival.
Spoiler warning: Plot and/or ending details follow.
It is wielded by the yōkai Sesshomaru. The swordsmith Totosai created it along with the Tessaiga from the fangs of Sesshomaru's father, who was a taiyōkai (lit. great yōkai) dog demon famous throughout the lands. Totosai, who forged Tenseiga and Tessaiga, claims that only someone who has the heart to cherish others would be able to use it. However Totosai confesses that he has actually little clue to the sword's mysterious powers. Sesshomaru, surprisingly, is able to use Tenseiga's abilities. According to Totosai, Tenseiga has chosen Sesshomaru as its master, regardless of whether he had a kind and caring heart.
Tenseiga has been used sparingly, mostly only when Sesshomaru feels like using its power for his own gains such as reviving the head of the yōkai Goshinki so that his fangs can be used to create the sword Tokijin; or when the sword compels Sesshomaru to use him for a good cause. One such example was the sword pulsing to tell Sesshomaru to revive Kanta's father, and in so doing, Sesshomaru learns the demon graveyard his father resides in figures into Naraku's plans.
Sesshomaru's human companion, a human girl named Rin, is brought back to life with the Tenseiga after she was killed by the demon wolves of Kōga; Jaken, Sesshomaru's assistant, is also revived by Tenseiga as well after Kaijinbo kills him while under the corruption of the Tokijin.
Since Tenseiga can harm the beings of the netherworld, the guardians at the gate that separates the Living World and the Dead, Gozu and Mezu, will not attack anyone who wields the Tenseiga for fear of their own safety, thus allowing them to pass the gate unobstructed. It was also observed in the 3rd Movie that Tenseiga has the ability to cut and damage the undead. Tenseiga's life giving powers deal divine damage to the undead, causing far more damage than conventional attacks. However, this never happens in the anime or the manga.
Other than the power to resurrect the dead, Tenseiga has also the ability to protect its user by erecting a barrier in extreme cases or life-threatening situations. When Inuyasha unleashed the Wind Scar properly for the first time on Sesshomaru, Tenseiga, sensing that the blow was fatal, gave off a blue light surrounding him and teleported him to safety. This seems to be a built-in defense mechanism. Tenseiga has also protected Sesshomaru in several other dangerous situations.
It is later reforged by Totosai, after Tokijin is broken, and it gains the Meidou Zangetsu Ha, which allows it to send enemies directly to the land of the dead as well as its previous resurrection power. Tenseiga had detected a change in Sesshomaru's heart where he felt feelings of fury and sadness for Kagura, prompting it to call out for Totosai and reforge it as a weapon as Sesshomaru had finally felt compassion for others. Tenseiga allows its user to cut open the path or boundary that separates the worlds of the living and the dead. A dark arc is formed in which it "cuts" the enemy in a sense and sends it to the after life. Sesshomaru performed this attack successfully on his first try which surprised Totosai. In the beginning, the fissure was only crescent moon shaped. As Sesshomaru perfects the technique the arc will become closer to a circle which will be able to send the entire body of the enemy to the next world or hell. Thus, Sesshomaru finally accepts its potential as a weapon.
Sesshomaru has used this technique numerous times and seeks to improve himself by entering a mountain and training by killing demons living there. Later, he kills the Numawatari (demonic lake), which Inuyasha and his companions could not defeat, with a single blow. He is closer to mastering it in chapter 470, when he purified many dead bodies, widening the opening.
It could also be possible that Inu no Taisho intended that Sesshomaru and Inuyasha inherit Tenseiga and Tessaiga respectively so that they could not kill each other. Likely knowing that Sesshomaru despised Inuyasha for being a hanyou and that Inuyasha would have a dangerous life, Inu no Taisho gifted Inuyasha with the powerful, destructive Tessaiga to protect himself and his loved ones and defend himself against Sesshomaru. Additionally Tessaiga seals Inuyasha's full demon blood. Sesshomaru was given the Tenseiga, such that Tenseiga could never be used to kill Inuyasha and can protect him from Tessaiga's attacks. This could be planned by Inu no Taisho to instill brotherly kinship or at least respect among the two brothers. Both swords are compared by Totosai as two sides of a coin. Neither is superior or inferior to the other. Each cancels out each another as Tenseiga can save 100 lives with one strike while Tessaiga can cut down 100 beings with one strike.
In Ch.470, it was revealed by Sesshomaru's mother that a person cannot be revived by Tenseiga more than once. He realizes this when Rin, already dead, is not responding to Tenseiga and vice versa. However, at the end of Ch.471, Sesshomaru's mother apparently revives Rin using the Meidou-stone, after leaving the Land of the dead.
天生牙是日本动画和漫画《犬夜叉》中，主角犬夜叉哥哥杀生丸使用的武器之一，初时是一把不能杀人或妖的刀，是刀刀斋用犬夜叉父亲的獠牙所打造的两把剑之一。与铁碎牙，丛云牙并称天下霸道之剑。有“天之天生牙，一挥之下可救百命”的称呼。
特 点
天生牙初时是一把不能杀人或妖的刀，因为天生牙是一把救赎之刀。只要有真正解救生命的心，一挥之下就可救许多生命。天生牙和铁碎牙原是同一把刀，犬大将将死神鬼打败之后，将死神鬼的“冥道残月破”吸收到铁碎牙之中，但深怕是半妖的犬夜叉承受不起冥道的邪气，于是请刀刀斋把铁碎牙和“冥道残月破”分离，重新打造另一把刀，也就是“天生牙”。不过后来在犬夜叉和杀生丸的对决之中，天生牙再次和铁碎牙重新融合，使铁碎牙拥有了黑色刀刃，并习得了“冥道残月破”。
招 式
复活
持有天生牙的人有能力看到死者周围的冥界使者，挥动天生牙杀掉死者就可以复活死去的人。这个招式不能对通过四魂之玉而复活的人使用。每个生命只可以用天生牙复活一次。
冥道残月破
天生牙的攻击招式，可以划破空间，创造冥道，将敌人吸入冥界，冥道会产生巨大的吸力，甚至可以吸收另一个冥道。天生牙和铁碎牙产生共鸣之后，也可使出完整的冥道残月破。冥道残月破招式越完美产生的冥道就越接近圆形，吸力也越大