Rokkon manifests as a small, rock-like earth spirit with a stout, animated stone figure and stubby limbs. This minor nature spirit communicates exclusively through grunts and gestures decipherable to associates. Initially drawn to the protagonist, Rokkon formed an attachment to agency owner Ayaka and now serves among her assistants at the supernatural investigation office. Primary duties involve menial tasks like cleaning and office maintenance. When necessary, Rokkon manipulates earth and stone to create barriers or reshape terrain. The spirit consistently exhibits loyalty toward Ayaka and frequently collaborates with Shouki, a fellow wind-spirit assistant. Though experiencing minimal personal development, Rokkon reliably provides support during paranormal cases—fulfilling a role that merges practical assistance with occasional comedic interactions in the office dynamic.