Two people sharing one body sounds like a setup for slapstick, it delivers that, hard, but the show actually cares about the friction of it. Tsutomu wants a normal life. Birdy wants to be a celebrity and save the galaxy. Neither can have what they want without destroying the other's world. The chemistry between them stops being a gimmick and becomes the entire point: two people learning to want the same things, or at least learning why they can't.

Birdy and Tsutomu still share a single body. She carries on with her work as a Federation investigator and her celebrity persona, while he tries to fit both around his ordinary life. Their routine is upended when a criminal group tied to the Ryunka incident escapes custody and hides on Earth, concealing their alien identities. What begins as a manhunt grows more complicated as other forces become involved and familiar faces reappear. As old connections return, Birdy is led to reflect on her past and the people who influenced her. The series mixes action, comedy and science fiction, pairing the humor of their shared body with the tension of the investigation.