Nia Teppelin figure captures the serene yet resilient aura of the TTGL heroine. The 1/8 scale renders her with flowing pink hair cascading around her shoulders, intricately sculpted folds in her white dress, and a poised, graceful stance that hints at her inner strength. Her eyes are soft but determined, reflecting the character's gentle resolve. The base evokes the series' energy motifs with subtle swirls and light effects that symbolize the spiral power at the heart of the story, while subtle weathering on the fabric and accessories adds a sense of realism. Meticulous painting highlights shading on the hair and dress, bringing out her ethereal presence as she stands ready to join the crew.

Nia Teppelin is introduced as the enigmatic daughter of the oppressive Teppelin regime, who unexpectedly joins Kamina's rebellion after meeting Simon and his friends. Her kind heart, curiosity, and spiritual calm contrast with the fiery determination of the other pilots, guiding the group toward mercy and hope even in dire moments. As the story unfolds, Nia reveals her true origin and her connection to the spiral power that drives the world. Her presence challenges the crew's assumptions about enemies and allies, deepening bonds and steering the group toward a united front against the Anti-Spirals. Nia's choices and her destiny become a central emotional thread that tests loyalty, courage, and the meaning of trust, shaping the series' ultimate message about compassion, connection, and the power of belief in a better future.