The story of Episode 12, titled "Bloody Night," serves as a brutal mid-season climax that unravels the dark history of the Hishigata family and leads to a catastrophic end for the current time loop. The Dark Truth of the Hishigata Family
Haine, appearing in the form of a young girl named Shiori, is no longer satisfied with just the dead and has begun targeting the living to prepare for the upcoming festival ritual. The Massacre at the Shrine
The episode concludes with Shinpei’s death, triggering a new loop where he must find a way to prevent this massacre from happening again. Summertime Render - Episode 12
Tokiko reveals that Ushio’s body was never cremated; instead, a fake body was used to hide the fact that Haine was feeding on the original to gain strength.
In a final act of desperation, Shinpei decides to reset the loop. He asks Ryuunosuke (Hizuru's brother residing within her) to kill him so he can carry the information they've learned into the next cycle. The story of Episode 12, titled "Bloody Night,"
During the confrontation, a massive flash of light erupts at the shrine, effectively completing the ritual and killing nearly everyone present, including Sou and Mio.
As Shinpei and his allies confront Tokiko, the situation spirals into chaos. Tokiko reveals that Ushio’s body was never cremated;
The white-haired girl, Haine, appears in the sky as the ritual reaches its peak, and the island begins to be engulfed in shadow. A Desperate Last Stand