An original character by [[oso (toolate)]] that is a [[personification]] of the 'Omphalotus japonicus' (formerly 'Omphalotus guepiniformis') species of mushroom, also known as the [i]tsukiyotake[/i]. It is a close relative of the jack'o'lantern fungus.

Her name is listed on oso's website and in his artbook as "Shizumine Tsukiyo" (静峰月夜.)
omphalotus japonicus