Ep. 24: Rena uncovers the nonexistence of Oyashiro and the viral nature of the village murders.
Aired on September 13, 2006

24
While examining Takano's scrapbooks, Rena learns that Oyashiro, the deity revered by the Three Families governing the village, is a fabrication. She identifies the root cause of the violence as a virus that induces berserk behavior in its victims. The narrative explains that specific altitude and temperature conditions are required for the virus to survive, which also accounts for the intense homesickness experienced by those leaving Hinamizawa. This pathogen is responsible for all the murders in the area. Consequently, Rena becomes the target of a relentless pursuit by individuals determined to conceal this dangerous truth at any cost.
Episodes
- Ep. 20 · Shion tortures the village head and confronts Rika, who is sprayed with pepper spray before being tasered and injected.
- Ep. 21 · Shion's descent into madness leads to murder, betrayal, and a fatal fall after hallucinating Satoshi's face.
- Ep. 22 · Happiness Chapter Atonement Part 1 Water Gun Battle and Dark Secrets
- Ep. 23 · Rena confronts Rina and Teppei at the landfill, leading to their deaths and a secret kept by friends.
- Ep. 24 · Rena uncovers the nonexistence of Oyashiro and the viral nature of the village murders.
- Ep. 25 · Rena's trust breaks as she discovers body relocation, leading to Keiichi's confession of past sins.
- Ep. 26 · Rena holds schoolmates hostage with a bomb while Keiichi confronts her on the roof.