Akai kills a mother in the streets at night, collecting blood for the mysterious blue girl to drink, as a token for her to stay with him. Seikichi tries to tell Sora to keep her ability to fly a secret. The blue girl, recognized as the blue sky beast, secretes a replica of herself, before finding and pursuing the white sky beast. Ginjiro suspiciously finds Sora in the streets, soon finding out that the white sky beast is actually her. When the blue girl catches up, Ginjiro orders the Men in Black to subdue her, allowing Sora to escape. Akai proposes that the blue girl should stay with him, instead of returning to the moon. After Sora show a nozzle fragment found in the meteor, though unbeknownst to the residents, Seikichi has an idea of how the rocket would be constructed.
ソラの特別な能力のことを知った後でも、マイペースな風来長屋の面々。赤井に気付かれたらおしまいと気が気ではない清吉と銀次郎は、安請け合いをするソラをつい怒鳴ってしまう。そのためにシュンとなったソラだったが、船のカケラならまだ残っているかもしれないことに気付き、南町奉行所の物置小屋に忍び込むが…。
