The fantasy light novel by Kibidango Project was launched online for free in 2012. The series features a number of illustrators that rotates every month.
The story revolves around Momotarou, who is a girl named Momoko in the story. Momoko has already defeated “the demon” with her 3 followers and things became peaceful again in the township of Momori. However things in the township become chaotic again when a mysterious, dark phenomenon occurs that causes Momoko to go on another adventure. (MyAnimeList)