Let me add.. that I just learned my phone (OnePlus 9) doesn't have "esim" feature sadly...
and ideally looking for physical SIM 1-3GB of data valid for 30 days for $20 USD (or less) from KIX airport. I saw esims with 3GB data are going for about $8 USD for 30 days.. what is the best deal for a physical SIM card with 1-3GB on it from KIX?