Qu Ling is the four souls of the Jade of the Four Souls, which refers to "Lucky Soul", "Harmony Soul", "Desolate Soul", and "Strange Soul".

Among them, "luck" represents love, "harmony" represents pro, "wilderness" represents bravery, and "strange" represents wisdom.

The Jade of the Four Souls has two forms, namely good and evil: when it falls into the hands of people with evil hearts, it will be polluted and become a "Qu Ling"; And if it falls into the hands of a person with a pure state of mind, it can be purified and become a "straight spirit".

The spirits under the normal operation of these souls are called "straight spirits" and are able to conform to the laws of nature.

Those who are polluted by evil are called "Qu Ling", and Qu Ling violates the laws of nature. The evil spirit Qu Ling, sealed in the Jade of the Four Souls, fears Kagome's spiritual power.

Using the properties of the Qu Ling, Naraku separated it from the Jade of the Four Souls and lent it to its flesh, causing the Qu Spirit to seal Kagome's spiritual power.

The flesh is the flesh of Naraku, which can be regenerated indefinitely.

The evil thought that the soul is the jade of the four souls belongs to the things of the other world, and cannot be killed by the sword of this life, and will not be affected by the spiritual power of the shrine maiden.

Because Qu Ling belongs to the things of the other world, he is very afraid of the Saber Innate Tooth of the Killing Pill, and the Innate Tooth has the power of the heavenly realm, and can easily kill the demon and soul body of the other world.

Qu Ling is an evil soul born from the jade of the four souls, a thing that belongs to the other world, similar to the bull head and horse face of the Fire Country's guardian of the gate of hell, and is an existence that will not be harmed by the earthly sword.

Because Naraku gave him a physical body, he was able to leave the Jade of the Four Souls to move freely.

He was very arrogant and conceited, and he was extremely sarcastic.

Not only did he taunt Sesshomaru for being weak, but he also possessed Suzu and took it away - he simply touched the reverse scales of Sesshomaru.

Qu Ling originally had no body, but it was Naraku who gave it a body.

In this way, the Qu Ling can move freely and appear in the world.

Qu Ling was afraid of Kagome's spiritual power, so he sealed her spiritual power when she was born.

This is actually very understandable, because Kagome is the reincarnation of Kikyo and has inherited the powerful spiritual power of Kikyo, so it is normal to be afraid of it.

And the Jade of the Four Souls was in Kagome's body at that time, and Kagome himself had not undergone spiritual power cultivation and did not know how to use it, so it was normal for him to be sealed by Qu Ling's spiritual power.

After Qu Ling obtained the physical body, just by staring at his eyes, Kagome fainted and lost his spiritual power.

Qu Ling had fought with Sesshomaru, and his poison was even stronger than Sesshomaru's, causing Sesshomaru's arm to be corroded.

Sesshomaru restored his body, trying to break the trick with his strength, but he was entangled by Qu Ling with his hand and couldn't break free [The evil opinion was still rethinking in his heart at the time, after all, he was a dog, and his head was not very bright, so he easily broke free after touching the transformation? ］

That battle, if it weren't for the blasting teeth in the body of the killing pill, it would probably have broken here.

But even if it shattered the teeth, it could only destroy Naraku's body, but it couldn't hurt Qu Ling's body.

Qu Ling laughed at the weakness of the killing pill at that time.

He was also the only one who dared to mock Sesshomaru for being weak.

Then Qu Ling became the person who Ji Nai was behind and the person Sesshomaru wanted to kill the most.

Sesshomaru has only dignity in his life, and he cannot be humiliated.

For this reason, Sesshomaru even left both Evil View and Suzu in Kaede's village, and went alone to track down the whereabouts of Qu Ling.

Although Qu Ling is not afraid of bursting his teeth, don't forget that the killing pill has innate teeth that specialize in killing people who do not belong to this world.

In the end, Qu Ling could not escape the pursuit of the killing pill and died under the natural tooth knife.

Sesshomaru is really a grudge.

Qu Ling used Naraku's body, possessed Amber, Suzu, and finally possessed Inuyasha, and laughed at Inuyasha for being a half-demon who was easy to manipulate.

Sesshomaru said that Qu Ling had chosen a bad possession object.

In the end, Sesshomaru really beat Inuyasha, and Inuyasha regained his sanity because of Kagome's blood smell, and after holding the iron broken teeth, he even used the dragon scales and iron broken teeth to slash himself with demon qi, and used the half-demon demon cave vortex to absorb Qu Ling, so that he could not continue to possess and could not escape, so that he was killed by Sesshomaru's natural teeth.

Thinking about the operation of the dragon scale iron broken teeth to slash the demon qi, it really has a miraculous effect, the last time was when the remnant moon of the underworld path of the killing pill was broken, Inuyasha self-slashed the demon qi, and the expanding demonic energy vortex can even squeeze the entire underworld, so that it can pass without being sucked in (there is a feeling of stepping on the left foot and ascending to heaven on the spot with the right foot)

Qu Ling's conceit hurt him, Naraku gave him the body, so that he couldn't return to the Jade of the Four Souls, and mocked the killing pill, but the natural teeth of the killing pill were his nemesis, and he couldn't be hunted down.

Mocking the half-demon of Inuyasha, but he was sucked by the half-demon's demon hole, unable to move, and could only be killed by the knife.

If Qu Ling had Naraku's three points of caution, he wouldn't have fallen like this.

Not as cautious as Naraku, but like Naraku, he can attract hatred.