"They can't even fit into the storage." Katarina complained as we tried to shove the dragon scales into her dimension bag to no avail.
Due to the sheer mana contained inside them, the scales collapsed any shoddily made dimension and occupied too much space in the ones we had.
Eventually, I was assigned to carry half of the scales inside a bag that Katarina made to hide the mana released from the scales.
When I complained about being the only person doing the heavy lifting, they came up with some excuse about using their mana to maintain the other dimension so they had to put all their focus there.
Liars.
"Don't be so mad. This is actually good training for you."
"Hah?"
"The mana from a dragon has unique traits. Legends have said that those who bathed in the blood of ancient divine dragons became invincible. Though most of it may be exaggeration, I believe that there must be some truth to it." Katarina explained.