Gagumber recovers from using his Gale system, and the group resumes their journey to Memenpu’s dream space like a whole lot of drama didn’t just go down in the city. Memenpu is amazed that Zack and her dad can act like everything is and always has been normal. All the while, she’s in the biggest hurry of the four of them, trying to confirm her dreams were real.
The thing is, the road is long and the part of the Labyrinth the group enters is particularly hot and buggy. Gagumber strips to his skivvies and jumps in a river, soon followed by Yuri and Zack. Their fun is interrupted by torrential rains that cause the very ground beneath them to cave in. It’s not often characters are stranded on a remote island by falling on top of it; it’s a neat concept that draws on the unique structure of the Labyrinth.
Memenpu puts her ample noodle to work devising different ways to get everyone out of this predicament, but the lack of Animus, electricity, or internet hampers her efforts and limits them things like a giant Tony inner tube and a luxury raft…but the waters around them are filled with deadly marine kaiju. All the brain usage makes Memenpu hungry, but learns all the rations she’d stored had been pre-eaten by Gagumber.
She assumes he’s “losing himself” in the island’s deep forest because he’s goofing off as usual, but just when she’s feeling most morose about her lack of progress, Gagumber presents her with a fresh papaya, one of thousands in the forest, which was the real reason he was going there. Not only is Memenpu moved to tears—she loves papaya ever since the late Lynda first gave her one—with enough papayas she’s able to rig a battery to power their mech’s lights and radio.
As the four take turns sending out an SOS, Zackletu talks to Yuri about how she’s able to get over the drama with Gagumber, saying she had “a little tantrum” that “just felt so silly” once it was over. Gagumber similarly has no hard feelings, and tells Memenpu if she can forgive Zack, then it’s water under the cave. In this lovely breakthrough father-daughter scene, Memenpu finally tells her dad she had a dream of him dying.
She’s upset when he says he can’t believe her dream and vows not to die, and doesn’t think they can be real partners if he doesn’t believe her. But Gagumber makes clear, even when he doesn’t believe or understand her, she’s still his daughter, they’re partners till the end, and he will always care.
Later, when the papaya battery is exhausted, the group hears a ghostly voice from an unknown location, and there’s a little more caving-in of rocks. Everyone reacts differently, proving Memenpu’s comment to her Tony Journal about their “team” being composed of four wildly different individuals. Yuri thinks they’re all going to die and Zack just wants to find her gun parts…but it turns out all the commotion is from a surfacing submarine manned by Merooro, come to rescue them.
While mostly a lighthearted and intimate episode, underscored by the core group’s isolation on an island within a remote unmapped cavern, this episode was bookended by scenes of the masked terrorist group Shibito committing acts of destruction in the name of…something.
In any case, they seem to be catching up to our team, and one pint-sized member named Muro seems to be hunting the “next child”, no doubt meaning Memenpu. Judging from the power Shibito demonstrates, if and when they cross paths it’s likely to make Zack’s tantrum look like a pillow fight.