Now, I'll store air in your stomach for I won't be mashed. Please do not burp.
Uup... yep...
... Excuse me. I don't know the reason for polishing the stone.
Oh, isn't it natural to take care of jewelry?
Yes...
Wait. Are you decorating the inside of your stomach!?
No one can see it!
I thought, should be particular about what you cannot see. It's "粋(Iki)".
It's extreme...
By the way, since they are magic stones, I can also store magical power.
Oh, it sounds like an external battery.
It's practical.
If you also deal with magic, I recommend swallowing stones.
Umm ...
https://en.wikipedia.org/wiki/Iki_(aesthetics)