@arkvin@kaminomikan Now, I don't remember if it was mentioned in a previous chapter, but as far as I can see this chapter doesn't say that the ingots are made of gold. It is probably made of a much lighter metal.
Seeing as the monster armor workshop and the guild just has a bunch of them lying around they're probably just really bulky (and high value) coins =P
@Riger The fish was also a giant Piranha instead of a Bass, so the artist probably watched a reference video with the Piranha tearing into meat.
@CalamityCallout Either it's a miscalculation, or the MC was thinking it was going to be 300,000 per slime and the Blacksmith decided to only charge 500,000 for a bulk amount since they're so small.