Humanity Has Declined

In a world where humanity is nearing extinction, the main character, a girl who acts as a mediator with fairies, is sent to turn butcher chickens, but the chickens escape.

The heroine and her assistant become lost after being separated from her grandfather and the receptionist.

A woman named Y who supposedly works in researching the Human Monument manages to find a disc full of data inside an old mansion.

Exploring the strange world they winded up in, the heroine and Y encounter her assistant, who had also gotten himself stuck.

As the village prepares an electric-powered festival for the Human Monument Project, the heroine hears from the fairies that they are leaving to avoid the electromagnetic waves from the festival that are deadly to them.

As Pion, revealed to be a robot who the heroine now calls P-ko, joins the party, they encounter her companion Oyage, a similar robot who calls himself O-taro, who wants to abandon his mission and live in the strange city.

As the heroine is sent by her grandfather to look for his assistant, she encounters someone who looks exactly like her.

As the heroine reflects on her multiple timeloops, she focuses on the details about the assistant given to her by her grandfather and the doctor looking after him.

After an increase in fairy population leads to bullying, the heroine is sent to accompany asylum seeking fairies to find a new home for them.

The heroine begins her job as a mediator and finds it not to be what she expected.

The heroine thinks back to when she was ten and began attending school, having to start at the lowest grade.

Whilst spending time having tea parties with the Wildrose Society, the heroine learns that Y was once part of the society.