The character of Hatsuko, voiced by Ayumi Banno, is a symbol of innocence and purity, who embodies the human desire for connection and understanding. Her interactions with the mysterious being, referred to as the "Angel," serve as a catalyst for exploring the complexities of human existence. The Angel, a creature both divine and alien, represents the unknown, and its presence sparks a chain of events that challenges Hatsuko's perceptions of the world and her place within it.

The plot is minimalist to the point of abstraction. A young girl wanders a desolate landscape carrying a large egg, protecting it with a maternal ferocity. She scavenges for water and glass bottles in the skeletons of buildings. Into this solitary existence steps a young man, armed with a cross-shaped rifle, who arrives in a primitive tank.

: Analyze how Amano’s wispy, gothic art style creates a purgatory-like world where environment dictates the mood.