Aquarius Nozomi is a powerful Celestial Spirit in the anime series Fairy Tail. Known as the Water Bearer, she is one of the twelve Zodiac spirits and is summoned using a rare Golden Key. Aquarius is recognized for her long blue hair, mermaid-like appearance, and a fierce, often irritable personality, especially towards her summoner, Lucy Heartfilia. Despite her abrasive demeanor, Aquarius displays deep care for her friends and plays a significant role in many of Fairy Tail's key battles and story arcs.