Kokomi is slightly below average height, having long, pale salmon pink hair and indigo eyes. She wears an elegant dress, has a Hydro vision, and wields the Everlasting Moonglow weapon, which can channel her Hydro energy. Kokomi is a strategist despite her age of only 18. She thinks of every possible outcome to her life decisions, and is beloved by the denizens of Watatsumi Island. She is easily burnt out by large workloads, but is not lazy. She loves nature and reading, having a gentle demeanor.