Lin Shen woke up after arresting a drug dealer and found himself in the unfamiliar Didan Elementary School. With doubts about his memory, he met Edogawa Conan and other members of the young detective team. As he explores, he discovers that there are strange mysteries hidden on campus: Home Economics teacher Saeko Kunigami behaves suspiciously, and the "death equation" on a mysterious metal card involves him in the "Hive Organization" conspiracy. Lin Shen cooperated with Conan to try to solve the mystery, but found that he might be in a virtual world. In the mirror-like echoes, he must find the truth and break the bonds.