Kasane

Kasane | 累 | かさね
Translation:
A girls’ name meaning “to pile up; to overlap; to add on;” an alternate reading of the kanji for her original name “Rui”.

Appearance: Kasane is the ghost from Kasane ga fuchi—The Pool of Kasane. It is based on true events which happened in the 17th century in what is now Ibaraki Prefecture, although the story has changed quite a bit from the original incident. Her tale is one of the most famous Edo period ghost stories, and she is often held up with Oiwa and Okiku as a prime example of the grudge-bearing Japanese woman ghost. Her story was later adapted into rakugo and kabuki theater, as well as numerous films.