Haine has devolved into an eyeless, helpless child that Shide apparently has no further use for. But he does want her Observer’s Right Eye, which is now in Ushio’s head. He provokes Ushio and Shinpei into following him to through a tear in the cave wall into another dimension.
Ushio tells Shinpei if he goes in he’s not coming out, but with both Ryuunosuke possessing him and her by his side, he’ll be fine. But even if things go pear-shaped, he hastens to tell Ushio he loves her, he wants to be with her, and he will never leave her side again.
The remainder of the episode takes place in a thoroughly weird—and hauntingly beautiful—dream world: Haine/Hiruko’s true home. As a result of Ryuunosuke pushing his body too hard, Shinpei’s right leg is ruined, but Ryuu offers to control his body and taking on the pain.
This enables Shinpei to walk, which he needs to do to find Ushio, whom they know is both still alive and no more than 50 meters away due to the shotgun she printed still being whole. Shinpei and Ryuu come upon a ball—Haine’s handball. They follow it into a Hitogashima frozen in time from when Haine lived.
There they find Ushio, apparently in great pain and in contact with Haine. But this Haine is different: she’s just a kind little girl like the one Ryuunosuke’s sister befriended years ago. Assured there’s no threat, Ushio introduces Haine to Shinpei and Ryuunosuke.
Haine tells them they’re in the realm of the dead, Toyoko. While the power of the awakened Observer’s Eye can only be fully utilized in the real world, Shide has brought Ushio here to steal the eye from her. Once he has the eye, he will transcend to a still higher dimension…and destroy the world.
Right on cue, Shide uses Baby Hiruko to summon one of Haine’s memories of her island being firebombed by a squadron of B-29s in World War II. Ushio’s hair shield protects them while Haine prepares to use her innate power to suspend the memory, giving Ushio a shot at attacking Shide. Without Hiruko in his possession, his armor will disappear, and she can kill Shide’s inner body within.
As you can tell from the screenshots, this episode is a trip, packed with gloriously detailed, imaginative, gorgeous, and frightening imagery, and an even more heightened reality when it comes to action, with Ushio using falling bombs as steps up to the plane where Shide is.
But as cool as this sequence is, it still isn’t enough to stop Shide, because the body she attacks is a hollow one – nothing but an empty suit of mud armor being controlled remotely through Hiruko. Gaining this new piece of information may prove costly, as Ushio passes out and starts to fall.
If any of this is wrong, I apologize, but the plot mechanics and rules of Summertime Render become more and more baroque with each passing episode. But this is such an engrossing spectacle and I’ve come to love these kids so much, I don’t really mind the growing complexity.