Ep. 21: Chapter Eight of Festival Music details the forty-eight hour timeline
Aired on November 27, 2007

21
Ooishi's group at the precinct disseminates false information concerning Rika. This deception causes significant disarray among the villain's crew. The narrative focuses on the urgent race against time as the characters attempt to prevent their plans from being foiled. The situation is driven by the spread of misinformation and the resulting chaos within the antagonist's organization.
Episodes
- Ep. 17 · Chapter Four of Festival Music details a strategic plan involving Rika's sacrifice.
- Ep. 18 · Festival Music Chapter Five reveals Satoshi's past and disappearance reasons
- Ep. 19 · Hanyuu Reveals Her Past as a God to Rika in Hinamizawa
- Ep. 20 · Chapter Seven of Festival Music details Rika gathering allies and investigating enemy supporters.
- Ep. 21 · Chapter Eight of Festival Music details the forty-eight hour timeline
- Ep. 22 · Chapter Nine: Offense and Defense in the Festival Music Arc
- Ep. 23 · Irie, Akasaka, Kasai, and Shion go to the clinic to rescue Tomitake while Satoshi is shown.
- Ep. 24 · Takano's Defeat and the Festival's Resolution with a Happy Ending