After slicing Shide to bits only for him to reform, Hizuru tries to get Haine to scan her so she can destroy her Shadow Shinpei vessel. Only Haine realizes that Hizuru was granted immunity by Mio. Haine also betrays her inherent inability to understand why Hizuru is doing what she’s doing: trying to save those lives that haven’t been lost after getting her brother killed.
Hizuru switches to Plan B, which is to transfer Ryuunosuke from her body to Shide’s mud armor of “nothing”. It succeeds, Ryuunosuke emerges from the mud, exposing Shide’s vulnerable human body just as Tokiko arrives aboard Ros, ready to pound Shide into the stone age.
By the time Shinpei and Shadow Mio make it to Alan’s garden, Shide’s clone tells them they’re too late; Mio and Sou are probably already being devoured by Shide in her cave. Shadow Mio confirms her original is dead, and she figures it’s time for Shinpei to loop.
A badly wounded Tokiko then arrives, having successfully escaped from Haine and Shide thanks to Nezu and Tetsu. She’s there only to warn Shinpei to go to Torajima Island to help Hizuru. Rather than go there in this loop, Shin assumes that like Mio and Sou, the others are dead, or will be before he and Shadow Mio arrive. So he shoots himself with Dr. Hishigata’s Derringer, and loops back to 10:10 AM.
Thanks to Shadow Mio’s speed, she and Shinpei are able to intercept Mio and Sou before they meet their doom, and redirect them to protect the kids. Mio has a chance to confess to Shinpei, but instead wishes him well before they part. He rides on Shadow Mio’s back as she glides through the forest and then takes to the sky to avoid enemy Shadows.
They arrive in style just as Shide is dispatching Ros, and he and Shadow Mio join Tokiko, Tetsu, Nezu, and Guil. Unfortunately, they’re just a little late to save Hizuru, whom Shide stabs in the heart and looms over menacingly.
Haine!Shinpei senses something…off, a brilliant glowing emanating from Shinpei’s pocket (the shell that is all that’s left of Ushio), and then tells Shide that they’re withdrawing for now. While the immediate threat to everyone has passed, Hizuru is in a bad way.
Shinpei prepares to shoot himself and loop again, but Hizuru doesn’t want him to, and Mio stops him from doing it. He’s no longer in the position to save everyone. For her part, Hizuru doesn’t fear her impending death, and considers she’s getting a better death than most.
Before she dies, she tells Shinpei to remember that at the end of the day, Haine’s base personality is still that of a lonely little girl who loved to be spoiled. She’s also certain that Shide and Haine’s goals are different, and that at this point Shide is likely using Haine. Just before breathing her last breath, she transfers Ryuunosuke to Shinpei.
I doubt she’ll be the last person to die who Shinpei can’t bring back by looping, but Hizuru’s dying words should prove vital in any eventual victory. Her returning to the island is the reason any of the others are still alive with a fighter’s chance of winning.
It’s looking like that chance will rely on creating a rift between Haine and Shide, shattering their bond so they’re isolated and weakened. Considering that bond has lasted centuries, that’ll be no easy task.