Yin and Yang World

After eternal night, the Blue Star detaches from its orbit and wanders in the abyss of the universe. There is no sunlight in the underground city, only the dim light of psychic lamps. Fifteen-year-old Lin Yuan has felt that he is different from others since he was a child - he has tinnitus, chills, and can feel some kind of indescribable "closeness". He thought it was a disease. Until he was admitted to Xingyuan College, and on the train to school, he saw a six-legged gray spirit beast staring at him through the car window. Until his soul was touched by a black crystal from the dead world, Until he discovered that his roommate - the quiet boy who wore black-rimmed glasses and always held a notebook - seemed to be hiding something. Two people who shouldn't exist lived in the same dormitory.