Robert Grillet's Eraser was called Eraser because it was a novel full of fantasy elements. The protagonist was a boy with the power of Eraser. Eraser ability meant that the protagonist could rewrite and erase his image and memories at will. He could erase all unpleasant things and even turn his body into an eraser. This ability allowed the protagonist to escape from the predicament of reality and change his form and fate at will. In the novel, the Eraser ability also involved some philosophical and religious issues, such as how the protagonist balanced the relationship between his desires and reality, and how to face the problems of the "rubber man" world he created. Therefore, the novel was called "Eraser" to express its fantasy elements and philosophical depth.