Back in the remnants of Tokyo, Maru plays old 8-bit arcade games while he and Kiruko ponder their next move. Maru is interrupted by some thugs who judge a book by it’s cover and try to bully him, but he fights back and kicks all eight of their asses, suffering only a chipped front tooth and a bruise on the cheek. Kiruko arrives to mop up, assuming the thugs started the fight—and they mostly did by picking on him—but there’s no doubt he escalated.
We learn that before Mikura took him in and taught him how to kill Hiruko, he lived in a home with a bunch of other kids, but that place was eventually shut down and the kids were split up among other places. Maru ended up in a roving gang—which explains why he can handle himself in a fight—until Mikura entered his life. Unlike Kiruko, he didn’t see Mikura as a woman so much as another person he had to listen to and obey. It’s in these scenes of his youth that his resemblance to Tokio is really made clear.
Deciding to keep Maru hidden while they goes on a shopping / gun-charging run downtown, Kiruko overhears the thugs still searching for Maru, and also mentioning a “Ministry of Reconstruction”, which they believe may just be an urban legend. They’re glad and even proud to hear “their Maru” is tough, but then wonders why—after all, when their mission is complete, they’ll be all alone again.
Kiruko is in that state of mind when they return to the room to find Maru missing, and immediately panics. Turns out he was next door jerking off to a porno mag, but he can tell how shook Kiruko is, and gives them a supportive hug. He also apologizes for being so dramatic about his past without considering that Kiruko’s was worse…at least in terms of what they lost.
Back in “Heaven”, despite the efforts of the children to keep Tarao in good spirits with a music and dance performance, the next morning the AI cheerfully reports that he has passed away. The children are allowed to participate in the memorial service.
Tokio is particularly wracked by the loss, and brings up the only other kid to die, Asura, with whom Kona was friends. Asura died of suicide, but the director blames their own research for causing her death. When we see Tokio vomiting into a toilet, it’s a bad sign. Is she now ill like Tarao, either just because, or somehow from her adventure with Kuku?
The paths of Kiruko/Maru and Tokio edge ever-so-slightly closer together when a man who was on the boat comes to Kiruko and Maru asks if he can hire them as bodyguards. He’s headed for a place called “Immortal Order” with a priceless sample of the Hiruko. But when he shows them the jar containing the sample, it has already rotted away to nothing.
Nevertheless, Kiruko and Maru are keen on going to this “Immortal Order”, which is in the same area on a map Kiruko purchased where there’s 100% clean water, suggesting it might be the “Heaven” Maru is seeking. Of course, it’s long since been established there’s nothing heavenly about “Heaven”, and the additional label “strange people” is also foreboding.
The researchers at “Heaven” don’t know what killed Tarao (who was immune to everything prior to taking ill), or whether it will happen to the other kids. And when they cremate Tarao’s body, a bizarre, creepy growth remains, untouched by the flames. The man from the boat mentioned transplanting parts of monsters into humans to give them powers and make them immortal.