Tsutomu, a typical middle‑school student grinding for his final exams to get into high school, collides with a man fleeing someone and is swept into the pursuit. Amid the chaos he dies by accident. Fortunately Birdy, an interplanetary operative, has a method to revive him, but it requires their bodies to merge into one. Now Tsutomu is bound to this officer, sharing the mission of catching wrongdoers and rescuing people.
Madhouse Studios Japan