Bldg. N

A college student, Shiori, visits an abandoned apartment complex in a provincial city, which is famous for its rumors of hauntings, out of curiosity along with Keita and Maho, who also attend the university. However, there are numerous residents there. As Shiori and her friends begin to investigate, they suddenly experience a violent "bizarre rap phenomenon" and a resident jumps to his death right in front of them.