Aota comes in, pulls Natsu out of the collapsing hut and tells Asei to head out because they didn't find anything. Natsu wants to give him the letter...and she doesn't, knowing putting it off is just going to make it impossible to do it later.
Asei notices something's up with her so he snoops through her stuff and finds the notes. He watches her crumble and tells her not is he not going to snitch, he's proud of her: the old Natsu would never have done this because she's a boring goody-two-shoes. This is a new Natsu, one who doesn't care about anyone but herself. But he still thinks she should hand over, and that she doesn't really love Aota, just the first boy who was ever nice to her. If it was Asei, would she have fallen for him?
Meanwhile, Tendo tries to swim out to the ship but nearly drowns before Mozu fishes her out. He takes out a flute he has and blows, waking everyone up on the ship. He takes his small boat over, tells them the situation and tells them to gather supplies. It's ten or so days...Tendo has been sending down water but Mozu tells her to prepare for the worst. Asei points out Hibari gave them the wrong directions, almost like she was deliberately throwing them out...
He and Aota fight until Tendo tells them to shut up and help, leading them to the hole where Mozu prepares to lower them with rope. Hibari's useless so Natsu has to do it, being lowered while Asei and Aota dig. She does find everybody...but they're completely buried.
Mozu orders for Natsu to be pulled up because there's nothing they can do...but Hibiki says Hotaru is still alive. After several hours, everyone is dug out surprisingly health for paralyzed, starved folk. They harvest the sap that the insects made, the same ones that were feeding on them while supplying them with free sugar. Hibari and Hotaru reunite...and Hibari walks off.
So it's bath time and naked Botan:
Asei wants to fuck her and Botan says fine...as long as he can be a good father. Asei is scared off when she also points out that women are putting their lives at risk whenever they give birth. Nobody's infertile...so the responsibility is theirs. Mozu, in all his grace, asks Botan if she has given birth before because she looks it. Botan says she's been pregnant before and has even been married...but in her last month before birth, she drove while drunk and had a fender bender. She lost the kid, her marriage fell apart and she signed up for 7 Seeds.
Firelflies come out and Botan, Tendo and Asei dance. Botan thanks Natsu for helping and Natsu asks how can she wish for her husband to be happy with his new wife. She says even if they split, she still loves him. When Natsu asks how could do that, Botan says you should want those you love to be happy above all else. Natsu, finally able to look Botan in the eye, decides to give Aota the letter. Asei tries to say he was the one who hid...but Aota is too stunned. His girlfriend is alive...and Natsu feels warm.