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 remain trapped in one body, an arrangement they've grown grudgingly used to. She handles her dual life as a Federation investigator and pop idol while he juggles homework and the constant indignity of sharing his own head with an alien warrior. Their fragile equilibrium shatters when dangerous fugitives from the Ryunka case resurface on Earth, disguised among the civilian population. What begins as a straightforward manhunt spirals into something darker, pulling in unexpected players from Birdy's past. As old connections resurface and new complications emerge, she's forced to confront how the people she's known have shaped her into who she is now. The series balances genuine humor from their body-sharing predicament against mounting tension as the investigation deepens. Characters return with their own agendas, and nothing about this case is as simple as it initially appeared. It's comedy colliding with consequence, where personal reflection matters as much as action sequences.