About the conference: I was very happy to learn some days ago that such a conference was going to take place. I had some hopes that the previous Nostrasia would be a Japanese thing but apparently it was a full-on English thing with just foreigners and no Japanese people in it, so now I am happy that you're doing this one.
It was a blessing when all of a sudden we started seeing Japanese characters being sent to Nostr in the beginning of last year and I couldn't read them, but every time I tried to translate them I would get some pictoresque joke related to poop or alpacas, completely out of context due to the air-reply style of the conversation, naturally formed around the existence of relays dedicated to the Japanese community.
(By the way, me and some others have been trying to promote the idea of having "community" relays on Nostr for a while, and it oftens falls into deaf ears, meanwhile that was the first thing the Japanese community did, so that was very inspiring.)
I still don't understand the Japanese people on that are on Nostr, I've tried to talk to some members of the community in order to understand them, but most of the times I left the conversation more confused than before, but I think that is great and fits perfectly into the "embrace the chaos" Nostr ethos.