The File of Young Kindaichi (1997 ) Episode 46

Hajime explains that the killer cleverly delayed the discovery of Ruri's body to create an alibi, and used the scents which attract and repel the Black Butterflies to cover his movements. He then accuses Masayuki Onodera of being the murderer Undying Butterfly. Hajime explains that the killings are retribution for the suicide of Minoru Suga and suspects that Onodera is the biological son of Minoru Suga and Midori. Onodera admits his guilt, blaming Midori for betraying his father and revealing the discovery of the luminous butterfly pupae to Shimon Madarame. However, Midori denies the accusation, saying that she 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 as revenge for what he did to Suga Minoru. Confronted by the truth, Onodera fatally stabs himself. Midori rushes to his side, then she 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 Shimon Madarame about the discovery causing him to steal the credit for discovering 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 rightfully 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.