Ms. Aki has been good friends with the kids and their family for a very long time now. While not much is known concerning Ms. Aki’s background, she has been a resident of the Abenobashi Shopping Arcade for years, and seems quite knowledgeable about the history of the area and those who dwell there, often offering a tip or two to Arumi and Sasshi. Ms. Aki shows up in the different dimensions of Abenobashi, usually in the company of Sayaka or Mune-mune.