|Killing Goods||The Injection of Eternal Sleep|
|Manga||Vol.1 Cut.1 ―Sleeping Princess of the Forest―|
|Anime||Cut 01 ―Sleeping Princess of the Forest―|
Yamane has a silver chopped hair that divides into two pigtails and a pair glasses.
Compared to other authors, her killing good manifested at a young age. Due to this, her emotional growth was stifled and the killing intent of it was harder to control. Since she was not able to control it, she killed both of her parents with the good.