Kaiou Michiru, also known as Sailor Neptune, is one of the Outer Senshi in Bishoujo Senshi Sailor Moon. A third-year student at Taisei Academy, she is an accomplished violinist and swimmer with a refined, artistic demeanor. Michiru possesses a strong sense of duty and intuition, often having premonitions that guide her actions. She transforms into Sailor Neptune, wielding the Deep Aqua Mirror and Talismans, partnering with Sailor Uranus (her close companion Haruka Tenou) to protect the solar system from threats. Known for her elegance and self-sacrificing nature, she embodies the power of the sea.