Re: translator's note, the meaning is like "They're incredibly delicious, although the flavor is very hard to describe..."

In case anyone else cares, the runes on page 58 appear to be:

INOTI WO MAMORU
MAMORI NO KABE
KOKO NI KIDUKANN

That is, 命を守る 守りの壁 ここに築かん, "I raise here a shielding wall that protects life."

This is such a good manga. Thank you.