A large spaceship appears over Tokyo three years before the story starts. A one-sided war against the seemingly harmless aliens ensues, sparking controversy and pacifism. Despite this unique and tragic event, high school girls Koyama Kadode and Nakagawa Ouran behave as if nothing has changed. They live their days like they always have. The focus of this story is not the alien invasion, but human nature, dialogue, growing up, and life.

A large spaceship appears over Tokyo three years before the story starts. A one-sided war against the seemingly harmless aliens ensues, sparking controversy and pacifism. Despite this unique and tragic event, high school girls Koyama Kadode and Nakagawa Ouran behave as if nothing has changed. They live their days like they always have. The focus of this story is not the alien invasion, but human nature, dialogue, growing up, and life.

Summer 1996 – Minato, a 10-year-old boy, is neglected by his alcoholic father and keeps to himself at home in a town by the sea. His only source of solace is Ben-chan, a girl goddess that appears on Benten Island. As Minato faces a new life in an orphanage and a painful parting from Ben-chan, he makes a wish to Shiranui for her. However, growing hatred toward his father gradually turns the wish into a malicious "curse" against him…