In Kafka’s Die Verwandlung, the leading character transformed into a gigantic insect. After that, he and his family’s life suddenly fell into a difficult position. Sartre thought that the form of any situation is due to the result of free will. According to the statement of Sartre, the reason why the character of the novel transformed into a gigantic insect was related to his consciousness and decision. The research purpose of this essay is to understand the character’s the situation and liberty in Die Verwandlung. In Gregor, we could find the situation and liberty to affect the existence. The novel didn’t point a way; it just let us to find the path by ourselves.