Edit – Also worth noting that according to Suyooo...
In "Was That A Pun?", Kanan says that everyone makes "minor mistakes" (ちょっとしたまちがい, chotto shita machigai). Ai takes the "Shitamachi" (下町) part, which is the part of Tokyo they visit in the event if I remember correctly?
Updated
I wasn't trying to make a pun...!That was a good one, Kanan!Huh?Oh~!And we just turned right..."It's all right..."Everyone makes mistakes from time to time, so it's all right.Don't worry about it.I thought this was a shortcut...sorry about that.Was That A Pun?