More than three hundred years ago, higher-dimensional beings invaded the world. Humanity deciphered the Mysterious Records, which documented the strange and secret, and Ascenders emerged in response. He Anzai has long been plagued by higher-dimensional phenomena invisible to ordinary people and is regarded as mentally ill. In truth, he has awakened an S-rank special ability: dimensional observation, comprehension, and leap, allowing him to glimpse all kinds of bizarre phenomena in the Phantom Trace Domain. By chance, he enters Shanhai Academy, where he meets Lu Yu, Xiao Yufeng, and others. He repeatedly encounters containment objects such as the Gravekeeper, the Pumpkin Head, the Twin-Wing Butterflies, and the Nameless Old Pact. As he trains relentlessly to improve his physical abilities and control his out-of-control vision, he explores how to travel between dimensions independently, investigates the truth behind higher dimensions, and unravels the secrets of his unusual constitution, confronting ever-emerging, indescribable horrors.