Summertime Render - Episode 12 -

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.

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. Summertime Render - Episode 12

The powerful Four-Armed Shadow (Shide) appears, taking Mio hostage and overwhelming the group. During the confrontation, a massive flash of light