Ep. 9: Keiichi investigates Satoshi's disappearance after his parents leave for Tokyo
Aired on May 31, 2006

9
With his parents traveling to Tokyo for several days, Keiichi receives assistance from Satoko and Rika, who prepare his meals. During this time, he learns about Satoshi, Satoko’s older brother, and the mysterious circumstances surrounding his disappearance during the previous year's Watanagashi festival. Moved by the story, Keiichi resolves to take on the role of a surrogate brother for Satoko. He simultaneously commits to uncovering the truth behind Satoshi's vanishing, aiming to provide closure and support to his friend while navigating the local legends associated with the festival.
Episodes
- Ep. 5 · Keiichi learns of Mion's twin Shion and their shared feelings for him
- Ep. 6 · Keiichi discovers the Watanagashi ritual shrine and questions the village's sacrificial traditions.
- Ep. 7 · Rika’s cryptic warnings and Shion’s confession lead to missing persons and a terrifying phone call.
- Ep. 8 · Keiichi confronts Mion regarding disappearances, leading to a torture chamber encounter and tragic revelations.
- Ep. 9 · Keiichi investigates Satoshi's disappearance after his parents leave for Tokyo
- Ep. 10 · Keiichi Intervenes When Satoko Is Absent Due to Abusive Uncle Teppei
- Ep. 11 · Keiichi resolves to kill Teppei and buries the body after a fatal confrontation.
- Ep. 12 · Keiichi learns he attended Watanagashi and confronts Satoko's uncle's abuse and a buried body.
- Ep. 13 · Keiichi investigates the Hojo residence and discovers Rika's body before Satoko attacks him.