Shoin's appearance causes a big fuss among all the residents of Astro Lodge, except Ren, who is more worried about his field trip.

Takumi can't get over the shock of what he saw, while Tomihiro has concerns about the magazine Ren's hiding from him.

Ren is on the prowl for proof of Naosuke’s deception, and the Hubby spy is on the prowl for keys of all kinds! How will the gang navigate these two crises?