Hinukan originates from Ryukyuan folk beliefs as a fire deity residing within household cooking stoves or hearths, protecting families from evil spirits. Daily maintenance involves morning water offerings and prayers for family wellbeing. Specific rituals occur on the first and fifteenth days of each lunar month, featuring offerings of awamori rice liquor, rice, and incense burning, with additional observances during spring and autumn equinoctial weeks. Traditionally, the oldest woman in each household served as the primary caretaker, reporting family events to Hinukan and maintaining a small altar. This altar, placed on a shelf, windowsill, or kitchen corner, holds a ceramic incense burner alongside symbolic items like plants, salt, water, alcohol, and rice. These practices reflect ancestral veneration within Ryukyuan spirituality, where the hearth god serves as both a protective presence and a conduit for familial communication with the spiritual realm.

Within the narrative context, Hinukan manifests as a navigator character. This portrayal integrates the deity's mythological role as a spiritual guide within the historical framework of the Ryukyu Kingdom, aligning with the broader thematic exploration of Ryukyuan cultural heritage and oral traditions drawn from the Omoro Sōshi—a compilation of ancient poems and folk songs preserving historical and legendary accounts.