Season 1

In pursuit of alien fugitives Bacillus and Geega, Birdy and Tute infiltrate Earth under the guise of a rising Japanese idol and her manager. On a routine night mission to apprehend the criminals, a civilian named Tsutomu Senkawa is used as a human shield. When Birdy realizes she has accidentally killed him, she determines that the only way to save his life is to fuse her body with his, preventing his death. Tsutomu believes it is all a dream until he discovers he cannot control his body one night after he was supposedly dead.