Mineral collecting is like a modern-day treasure hunt! Ruri, a high school girl who loves jewelry and accessories, gets into the world of mineral collecting, venturing into mountains, rivers, and caves. The first volume features numerous minerals, including quartz, garnet, pyrite, gold sand, and fluorite. The manga is full of fascinating scenes focusing on specialized tools such as a panning dish, hammer, and topographical maps. An authentic scientific adventure based on the author's solid knowledge of mineralogy!

The story takes place in another world where there are gods. This world lays above the sky and below the ocean. Four evil gods used to support this world by acting as pillars, but they ran away including all the other minor gods that lived in this world. Thus, people called Kashikan's appeared. Their job is to capture the gods that fled and return stability to the country. The main character Ichiyou is a Kashikan who unwillingly took up the job to regain his foster father's freedom. His foster father, a tiger, was captured to act as a replacement of the four gods who ran away. Ichiyou's main objective is to recapture the evil gods and take back the peaceful life that he used to live. (Source: zcigaara)

Specials included in the Blu-ray release of Elf-san wa Yaserarenai.

Unaired episodes included in the Blu-ray box volumes.