Hajime reveals that the next page on the calendar from which Soga tore the pages was the month of March, which in ancient Japanese revealed Yaoi Muranishi as the killer. He then reveals the location of the artefacts through an arrangement of mirrors in the mansion and finds them hidden inside a stone statue. Muranishi explains that Kyouko manipulated Shiro Munakata into marrying her, but she feared he would leave her after finding the artefacts so she destroyed his research...