Can a rice ball without any filling be tasty?

It has a simple taste, which I'm really fond of.

Though Commander did say that rice balls with plum filling are delicious...

EH!?

Where!? Where was Commander eating a rice ball!?

Right over there.

Got myself a chance to collect the seed of Commander's pickled dried plum!!

I see... Thank you.

Aa-n

It was the sliced-and-mixed-in type...!!