A dark & lighthearted comedy about a misfortunate geisha Celes Rada and her dangerously-curious and rambunctious "assistant" Ash Sparks. Armed with the memories of a ghost from a thousand years ago and wielding the long-forgotten scientific method the duo attempts to take on the post-apocalyptic world of sevitor spirits, titanic God-beasts and boundless cults led by unscrupulous immortals.

It is a story about endurance, persistence and strength of the human spirit, the kind that shouts "Humanity, Fuck Yeah!" when faced with cosmic-monstrosities from beyond the stars.Note: [Litrpg] part of this begins in chapter 10.