Kechizu

Where his brothers keep a humanlike shape, Kechizu comes across as a pure curse. A turquoise hunchback tipped with claws, he carries two jagged-toothed mouths on his head: a small face up high and a vast maw directly beneath it. Dark blood drips alike from his eyes and from both mouths.

That smaller upper face amounts to leftover residue from the vessel he inhabits, evidence that his power as a cursed object falls short of his elder brothers'.

The most immature of the three Womb siblings, Kechizu rarely does more than carry out the wishes of his own kind. He keeps near Eso whenever he is able, and whenever peril draws close he cries out for his older brother to come help.

Classed as a special grade cursed object, Kechizu was given life by Mahito's group to help the curses take Japan. He and Eso drew the job of retrieving a single Sukuna finger and came close to killing the students sent after them, and although he was the frailest of the trio, he still landed a surprise blow on Yuji. Being a Death Painting Womb, he turns his cursed energy straight into blood, which keeps him from dying of blood loss for as long as his reserves last.

His innate Rot Technique gives him command over his body's caustic blood, which functions as a poison; most often he hurls blasts of rotten blood that sear flesh where they strike. Paired with it is Decay: the instant his blood gets inside a target through a wound or mucous membrane, the technique starts poisoning and decomposing the body from that entry point, blooming a floral pattern as it spreads. Unchecked, it is built to kill in ten to fifteen minutes and leaves only bones behind.