Kindaichi Shounen no Jikenbo EP46 - Black Butterfly of Death Murder Case File 4

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. Onodera admits his guilt, blaming Midori for betraying his father and revealing the location of the luminous butterfly pupae to Shimon Madarame. However, Midori rejects the accusation, saying that she always loved Suga, and that her three girls were his through artificial insemination, a fact that she was planning to reveal when Madarame was in his deathbed. Confronted by the truth, Onodera fatally stabs himself. Midori rushes to his side, then she the sets the building on fire to die with her son. After they escape the scientist Yamano reveals that he always knew that Suga Minoru was the one who had discovered the Legendary Luminous Butterfly, but he in his excitement told Madarame about this. Revealing himself to be the one who had told Madarame about the discovery causing him to steal the credit for finding the butterfly. He states he had no ill intentions he just wanted to save the Lab with the funding he received from Madarame he had no idea it would lead to such calamity. In the end Suga Minoru is given credit for discovering the Luminous Butterfly, and Miyama and Ageha get married with Hajime stating that Touno Eiji died that day in the lake.