Young Diadara and Shiroku from Persona 4.
I’ve always found it interesting how, in Persona 4, the shop keepers’ involvement in the story is never explained.
In P3, Kurosawa is a member of the police and obviously has a personal deal both with SEES and with the Kirijo organization. The item shop lady, too, has several lines about how she knows what is going on and wants to help.
But in Persona 4, Daidara and Shiroku’s unfailing willingness to help is never addressed, which is ODD when you think about it. Daidara even uses shadow-bits to makes weapons for you - without even blinking.
I also don’t know how many people noticed this, but there’s a very interesting line or two of background NPC dialog that you can encounter in town, where one of the townsfolk talks about how Inaba’s odd, oppressive fog rises once every 50 years.
SO - and this played a large role in Again and Again and Again Once More - I have a head canon/pet theory that Izanami wakes up every 50 years and tests man’s potential. 50 years ago, Daidara, Shiroku and other towns folk (probably including the old fisherman, because who the hell trades fish for armor and magic leaves) beat the shadows back, and, during the events in P4, they are offering their assistance as best they can, because they understand what is at risk.
You can find a MUCH better explanation of this theory HERE