Dai Byouin Senkyo Mae: The Night Before

Half a year before the occupation incident. Koichi struggles to discover the truth Kaiseido Hospital hides. Meanwhile, Koichi and Sagami infiltrate Tajima Design Office, which designed Kaiseido Hospital. They're looking for blueprint data, but suddenly three employees and a security guard show up. It seems that they were contacted by the police asking them to come because they wanted to hear about the theft. However, the elevator that everyone got on stops on the way. Furthermore, a mysterious…