Kataba no Ashi

Kills by dismemberment one whose face, address, name, age, occupation, and location are all known by the curse bearer.

It is stolen by Ayame Tono after murdering Nejima/Ashimiya.

Okama was a lovely woman. She was spirited, worked hard and lived a frugal yet pleasant life... until her husband hanged himself.
"My husband, a swindler? Who would believe such a thing?"
Okoma was determined to clear her husband's name. That is when she met Tomezo, a man that was a stranger to these parts.
"This man must be one of the daimyo's spies. It appears that after my husband, I will be next. So be it — but what is he hunting for?"
Okoma, putting on the airs of a woman mourning her husband, went to the bridge nightly to seek information from Tomezo. She soon discovered that she was right, and that her husband had been deceived. Okoma decided to bring her newfound knowledge to the daimyo, much to Tomezo's alarm. Angered at having been misled, he confronted her on the bridge. But Okoma would not listen. She cursed him, called him vile names, and eventually his patience had worn thin.
Blood splattered everywhere, and by the time he returned to his senses, it was already too late. He looked over the bridge into the river of blood below and saw the corpse of a woman missing both an arm and a leg...

Okoma was the wife of Jinkichi and the mother of Toki. Her husband was killed for information on Seiman's location, who visited their home. Following Okoma's death, Toki soon drowned in the canal searching for her parents.