C547 B-class Biological Warship
This kind of complicated work itself was not too difficult, but it was just shrinking the size of the warship time and time again.
However, the exhausting part was the repetitive process of this process. Imagine it. One day, you would be forced to eat a crab.
In the first few days, you might think that it was delicious, but in the end, you had to force yourself to eat it