Hajime explains that the killer cleverly delayed the discovery of Fumi's body to create an alibi, and used the scants which attract and repel the Black Butterflies to cover his movements. He then accuses Masayuki Onodera of being the Undying Butterfly killer. Hajime explains that the killings are retribution for the suicide of Minoru Suga and suspects that Onodera is the son of Minoru Suga and Midori...