Seikichi is given permission to build the rocket for Sora on an island outside the row house. Genzo has now revert back to his human form. Oise is directing a play about the rocket being constructed, of which Tenho and Tenten put up flyers in the streets for advertisement. Tenho and Genzo respectively take on the roles of Seikichi and Sora, though Sora does her own voice-over. When the scene turns to when Sora was to return to the moon, Sora improvises that she would want to stay with Seikichi instead. Oddly enough, Seikichi causes the theater to detonate, yet the resides go on to celebrate their success. Seikichi promises to plan a big party for Sora when the rocket is finished.
血抜き殺しの一件が一応解決した江戸の町。幕府より月まで届く花火作りが認められたため、風来長屋を処払いになって近所に引っ越した清吉と駿平たちは大いに張り切っていた。その花火の制作現場となった石川島では、作業棟に燃料調合棟、設計棟が立ち並ぶ。そして、そばには芝居小屋もあった。実は、その芝居小屋は…。
