Shiragiku () was an oiran who lived in Yoshiwara and knew both Kubinashi and Kejoro when they were alive - the latter serving as her attendant. She appeared to be in love with Kubinashi and often worried that his Robin Hood-type behavior would get him caught and beheaded. At one point, one of Kubinashi's former targets began threatening Shiragiku to provide information on him. After she refused and was ultimately taken hostage, Kubinashi and his fellow thieves went to rescue her but she had already committed suicide.
(Source: Nurarihyon no Mago Wikia)
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