In a certain corner of the world—once ravaged by war, now peaceful—a small funeral is being held.
It was the funeral of a certain man.
He was the hero that fought against the world's "common sense" that pervaded the world during his time.
Sometimes he was ridiculed, other times he was considered a hero, but he kept fighting to realize his dream.
And, in the end, he realized his dream.
In cooperation with the Republic of Sages, he managed to develop a new type of Homunculi, ones capable of sentience, and was successful in spreading them throughout the world.
As a result, people were able to realize the potential of Homunculi.
He successfully revived the "bond between Humanity and Homunculi" that was lost in prehistory.
Having accomplished his goal, he lies peacefully in a large coffin.
His large coffin is quietly lowered into a hole dug in the ground.
People grieve and shed tears over his brave death.
However, his partner, Katamimi, was not among them.
Several days have passed since the man's coffin was buried.
His eyes have sunken in, and the stench of decay is slowly permeating his body.
In the dark, "something" moved inside the coffin, where not even a single ray of light shone.
The "something" slowly stood up, staring at the man's face within the darkness.
That "something" was Katamimi.
When her master died, she asked his bereaved family to have her buried with him.