Aono-san works as a police officer familiar with recurring misunderstandings involving Atsushi Miyagawa, an elementary school student whose adult appearance causes frequent confusion. Her chipper, energetic demeanor during duties often results in overzealous interventions, inadvertently complicating situations for colleague Miura. These complications typically intersect with Miura's marital concerns, though Aono-san's actions stem from enthusiasm rather than harmful intent. Her documented role centers on professional interactions, particularly the dynamic with Miura during police scenarios involving Atsushi.