damn dude really hates scum. It doesn't really impact the taste ya know

and it's actually full of nutrients (protein), like the elf said, which could be very important for a nomadic tribe, where food is likely scarce. Dude is ruined by modern living.
At least this manga has an explanation why food culture stagnated in the tribe - trying to improve the food could lead to death. Unlike the usual trope where the isekai food is bad because... reasons
