At the Beginning, I Got the Ghost Corps, and I Formed an Army by Myself.

Hundreds of years ago, strange creatures appeared from nowhere and swept the human world. At first, humans could defeat these monsters with advanced artillery and technology. However, as the monsters continued to evolve, the fate of mankind has reached a precarious point, and the continuation of the race is at stake. Under this tremendous pressure, human beings awakened powerful abilities, resonated with the spiritual power between heaven and earth, and became spiritual beings. With the help of spiritual beings, humans have the ability to fight these monsters head-on. … Today, hundreds of years later, this world has become a world where spiritual beings are respected. Everyone is proud to be a spiritual being. Everyone can participate in the spiritual contract ceremony and awaken to become a spiritual being during the college entrance examination. Shen Mo was originally a high school student. He thought that after an accidental death, he time-traveled into the body of a high school student with the same name as him. For the past three years, Shen Mo's life has been poor and fulfilling. However, a year before he participated in the college entrance examination spiritual bond ceremony, he was diagnosed as a "non-spiritual person" and could not awaken his spiritual power. Since then, Shen Mo has been looked down upon in the academy. The day before the spiritual contract ceremony of the college entrance examination, Shen Mo entered a strange dream, and his life changed forever. "Ding! It is detected that the host has completed the hidden mission, and the shadow inheritance system is automatically bound!" "Ding! The system is successfully bound, and you will be rewarded with a ghost mask!" … I can conquer the disaster-level pits by myself; when monsters come in large numbers, I can defeat thousands of armies by myself; I have been inactive for eighteen years, and I will try to see who will be the king in the future.