People always work hard for something in this life. Some say it is for life, some say it is for fame and fortune, and some says it is for faith. All kinds of people and all kinds of stories make up this lively world. What about them? They are at the junction of light and darkness, they are messengers standing between life and death. He longs for warmth, but has no past, and she is spicy and open-minded, but has no future. In the strange and indifferent city, their journey begins.