Akihiro Kanou, with the first successful patient believed to be Ken Kaneki.ĭr. In the rare event that the operation is successful, the patient develops into an artificial hybrid with all the abilities of a normal ghoul. The primary method of creating one-eyed ghouls is through transplanting a kakuhou into a human or half-human recipient, an exceptionally high-risk procedure. Kakuhou Transplant Main article: Kakuhou transplant surgery

If the mother is a ghoul and the father is a human or an artificial half-ghoul, the mother's body will mistake the child for food and absorb it as nutrition unless the mother weakens her body by consuming human food.

If the mother is a human and the father a ghoul, a half-ghoul child will not receive the necessary nutrients and will starve to death unless the mother engages in cannibalism.

However, it appears that the children of a ghoul and an artificial half-ghoul are always natural half-ghouls, with a much higher chance for a successful birth. Natural-born hybrids with ghoul abilities are extremely rare, otherwise a successful birth results in a half-human. Hybrids come into existence through two methods, either normally born as a result of the union between a ghoul and a human or an artificial half-ghoul, or through transplanting a kakuhou into a human host.Īccording to Itori, the chance of pregnancy is low, and even if the mother becomes pregnant, the child normally dies in the womb. However, natural one-eyed ghouls like Eto are able to taste and consume human food without negative effects.

Shiba claims that the more half-ghouls and Quinx get hurt, the more their basic abilities will increase.Īrtificial one-eyed ghouls can only consume flesh of human or ghoul origin like normal ghouls and thus they are strictly a cannibalistic organism.

Physically, their bodies are identical to that of a ghoul with the same resistance to harm and ability to use a kagune. Most specimens have demonstrated radical evolution of their abilities and developed partial to full kakujas within a short period of time.

Rumors state that hybrids are more powerful than ordinary ghouls due to hybrid vigor, though it has not been further elaborated on. Their flesh and blood is also noted to be particularly delicious, making them a potential target for cannibalism. It is unknown whether all hybrids have this trait. Ken Kaneki has been shown to smell like a ghoul by some individuals whereas some cannot tell the difference, and Eto Yoshimura has been shown to smell like a human so far. Some individuals are noted to have a unique scent that combines traits of a human and a ghoul, identifying them as different and often considered 'enticing' by certain ghouls. One-eyed ghouls earn their name from the single kakugan they possess, in contrast to normal ghouls.

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