Undertale: Pacifist as a book.

History

Long ago, two races ruled over earth, humans and monsters. Humans, afraid of the monsters ability to absorb souls, declared war on the monsters. However, the monsters were too weak, and many were turned to dust. Humans, filled with determination, won the war, and sealed the monsters underground with a magic spell. Using a barrier only a human and a monster soul could pass, they kept the monsters underground for centuries. Many years later, a human named Chara, who hated humanity,climbed Mt. Ebott. Legends say those who climb the mountain never return. Chara fell down into the underground. Injured by their fall, they called for help. Asriel, who just so happened to be nearby, heard their call. He went over to Chara, and helped them. Toriel, Asgore and Asriel adopted Chara, and they were a happy family. Until Chara and Asriel went to make butterscotch and cinnamon pie, and mixed up the ingredients from butter to flowers. Chara became very ill from it, and couldn't be revived. They had one wish, to see the flowers from their village. Sadly, the barrier prevented the monsters from leaving, so Chara died. Asriel, wracked with grief, absorbed the human soul, and carried the body up to the surface. He laid Chara down on the flowers, however some humans saw him. They thought Asriel had killed the child. They attacked him with all their power. Asriel, although he had the power, did not fight back. He stumbled back home. When he got back, he died on some flowers. Asgore, wracked with grief, decided the humans had done enough. Every human that falls down must die. Toriel, however, did not agree to Asgore's decision, and left him to go and live in the ruins. She decided to keep all the humans safe from him. However, the humans that fell down left Toriel house and died because of the Royal Guard. Their belongings got placed in random places, and Asgore obtained the souls.