Kechizu

Kechizu is a cursed spirit and human mix and the third of the Death Painting Wombs with a Special Grade rank. Together with his brothers, they have sided with Mahito.

History
Kechizu is one of nine death painting wombs that came from a women capable of giving birth to Cursed Spirit children. At some point, Kechizu and his brothers were stored at Jujutsu High along with some of Sukuna's fingers.

Goodwill Event Arc
Kechizu and his brothers, along with Sukuna's fingers, were taken from Jujutsu High by Mahito.

The Origin of Obedience Arc
Kechizu and his brothers are given bodies by Mahito, which Kechizu and his brothers decided to side with the Cursed Spirits since the world they envisioned will suit the brothers more.

Kechizu and Eso are sent on an errand to Yasohachi Bridge to retrieve one of Sukuna's fingers. Once at the bridge, Kechziu enters the Cursed Spirit territory and encounters Yuji, Nobara, and Megumi. Kechizu gets into a fight with Yuji, which Kechizu tries to hit Yuji with his blood but fails. As Kechizu get a hold of Yuji, Yuji easily harms Kechizu. Kechizu then proclaims that Yuji is strong and that this is not fun. When Eso takes Nobara out of the territory, Kechizu heads out to along with Yuji following close behind.

When Kechizu and Yuji meet up with Eso, they see Eso back and apologizes for it. As Eso forces Yuji and Nobara to run, Kechizu takes a short cut and cuts the two off. Kechizu takes this chance to hit Yuji with his blood, and Eso manages to land a blow while Nobara is distracted. When Eso activate their Decay technique, Nobara uses her own body to harm the two brothers.

Curse Power and Forms
Kechizu's cursed power is Decomposition, this technique allows Kechizu and his brothers to decay anyone who has come in contact with their blood. Kechizu's blood is poisonous, but it is not the same quality as his brother's.
 * Supreme Rot Technique: Decay: This technique cause a flower pattern to appear on a person that has been hit with Kechizu or his brother's blood. At the spot the target was hit at, the target starts to decay. Any of the brothers are able to activate this technique.