A curious group of individuals resides in the unique structure of Getenrou - ranging from adolescent boys hunting for indecent material, to an astronaut, and even mechanical beings. The situation becomes more complex as a series of killings take place.
Sakuraba Saeko, an officer, becomes fascinated with a pair of siblings who possess vital details in relation to the homicides. She decides to pursue her own inquiry, utilizing her unorthodox approach to unravel the Getenrou mystery.
It's worth noting that this manga was a contender for the 2012 Manga Taisho Award.