Eternity Larva is a fairy character from the Touhou Project series, first appearing in Hidden Star in Four Seasons. She is one of the three fairies associated with the incident and the seasonal disturbances in Gensokyo. Eternity is cheerful, carefree, and curious, often acting in a playful and mischievous way. As a fairy, she is not a major antagonist, but she contributes to the story by participating in the events surrounding the season imbalance and by reflecting the whimsical, supernatural atmosphere of the Touhou universe.