The Beginning of the Secret Realm of Life and Death: Signing a Contract with the Devil

In 2600, a mysterious force broke out on Blue Star. Countless high walls appeared out of thin air, covering large areas of Blue Star. From then on, the exploration began. At the beginning of the mutation, people were full of yearning for the world inside the wall. Countless people came one after another to explore the secrets inside the wall, but no one knew what happened. No one who entered came out, and the wall gradually closed. Until "that person" appeared, he was the only one who came out and gave people hope again. "That person" said that behind the wall there is no treasure, no power, only things you can't imagine, things that can change the future... The more mysterious something is, the more attractive it is. People once again embarked on an adventure journey for what "that person" said. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.