Yes, I'm talking about the ramen vendor.
I find the idea quite interesting, that you can learn more about the surroundings of the city through him, as well as other characters who visit his stall, including you. and thus have more options or spend time with the old man, since your grandfather is no longer there, a possible relationship between the two could be interesting.
Regarding the rest, I will look forward to the continuation of each of the stories already planned! . due to the time I write, I think it is appropriate to say in advance, Happy Holidays!, Merry Christmas! and Happy New Year!