Japanese living in Osaka — What do people in Hawaii miss from Japan?

Aloha!
I’m Japanese and currently living in Osaka with my family.
I’ve been really interested in Hawaii and possibly spending time there in the future.
I’m especially curious about daily life on Oahu.
I would love to learn from people who are already living there:
What do you miss most from Japan while living in Hawaii?
(Food, products, services, or anything in daily life)
Also, what are some small inconveniences you experience compared to Japan?
I’m just trying to understand real life experiences, and I’d really appreciate your insights 😊
Mahalo!