Nicky is a female Cocotama, a small god born from a diary that was cherished with love and care. Unlike most Cocotama, who originate from the present day, Nicky comes from three hundred years in the future. Her appearance is white with light violet curled bangs and tipped paws, and she has large, feminine blue eyes. Her egg shell in the toy line is pink. Within the story of Kira Kira Happy Hirake! Cocotama, Nicky is one of several Cocotama who later join the main group living in Cocotama Town, a special community built for Cocotama. Detailed information about her personality, specific motivations, key relationships, character development, or notable magical abilities is not clearly documented in available sources.