This World Is Not Stable

Someone told me that parallel worlds actually do exist. There are unstable gap worlds between parallel worlds, and the world I am in is the gap world that is about to collapse. What's more serious is that I will be the first to perish! Wenzhou, an insomniac, signed a dream contract in order to save himself, and embarked on a path of no return called the Contractor to save a world that may disappear.