A sci-fi, summer story filled with suspense set on a small island with Shinpei Aijiro, whose childhood friend Ushio Kofune died. He returns to his hometown for the first time in two years for the funeral. Sou Hishigata, his best friend, suspects some…thing's off with Ushio's death, and that someone can die next. A sinister omen is heard as an entire family next door suddenly disappears the following day. Furthermore, Mio implicates a "shadow" three days before Ushio's death.
I'd recommend it for its tension, its loops and a mystery that keeps getting more difficult because the enemy also learns from each attempt.
It's a good fit if you're looking for science fiction, horror, action and an island full of secrets.
What sets it apart from other time loops is that shadows copy body and memories, and some also learn between reboots; Shinpei is not the only one taking advantage of what happened earlier.
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