Future Earth is mostly covered with water, but several cities remain. Maia takes a job with Neres, a security company that will do anything for money. It is obvious that no one “normal” works at Neres. Shizuka is a tech-crazy young woman with a passion for food, Glora is a trigger-happy tomboy, and Yuu, a quiet, brooding woman is deadly in combat. Maia faces danger daily, but she does her best to hang on and make it through this unexpected turn her life has taken in Daphne in the Brilliant Blue.