Set in 15th-century Europe, the story follows individuals who risk their lives to prove the heliocentric theory

Unlike typical action-heavy anime, this series is a "thriller scientific haletant" (breathtaking scientific thriller). It focuses on the human spirit and the transmission of knowledge across generations rather than relying on flashy battles.

The innate drive to understand the stars, even under the threat of torture.

Lorenzo (softly): “I burned a man in Naples for this drawing. But I wept while lighting the pyre. Because I know… it’s beautiful. And it might be true.”

The first half of the episode focuses on Nowak’s profound grief. Usually a cold and efficient killer for the Church, he is shown completely broken, haunted by memories of Jolenta's childhood and a pair of gloves he once gave her. This deception effectively destroys Nowak's will to live and fuels his growing resentment toward his superiors. The narrative then shifts to Father Grabowski