Miraculous Chibi (2018)

S1E19 The Clown Robot of Terror

A high-tech robot with a friendly appearance is secretly programmed to destroy other cities. The real danger escalates when local children grow attached to it, viewing it as a harmless playmate. As the robot's destructive mission begins, the heroes face an emotional dilemma—stopping it means breaking the children's hearts, while letting it continue threatens entire urban populations.