Bernie introduced the weapons to Abel, "These eight consecutive ballistas are for intimidating enemies. If the enemies aren't scared, you can open the windows and show them how strong the skyship really is."
In the original design, the skyship had only a total of four ballistas. Bernie decided to change that number to twenty-eight. He wanted Abel to have a vessel that could wage a small-sized war.
When they went into the operation room, Abel saw that half of the interior was decorated extravagantly. The room was split into two, the first half being a luxurious resting space and the other as the real operating room. The operation room was sealed tight with an iron door locked with a circle.