Yuusha Keisatsu J-Decker

Yuuta Tomonaga is a grade schooler who encounters Deckerd, a humanoid robot being built by the Japanese police for advanced crime-fighting purposes. As Yuuta regularly interacts with Deckerd, the robot develops a distinct personality, which later forms the basis for a unique partnership between humans and robots within the "Brave Police" unit. Yuuta is eventually recruited as the leader of the "Brave Police," further solidifying the human-robot collaboration.