Libra City is a sprawling metropolis whose districts split the rich and the poor. Hiding among the populace are three humanoid monsters—Bem, Bela, and Belo—who protect humanity and hope to one day become humans themselves. However, when a Mysterious Lady threatens their way of life, Bem, Bela, and Belo are pulled into a plot unlike anything they’ve ever known.
The whole Sanctuary was misled into danger due to the civil war instigated by the Gemini Gold Saint, Saga. Our story begins right after the end of those events... This is a story of the girls protecting Athena. These are the records of love and fierce fights they meet while opposing destiny on their way to maturity...