In the beginning, there were only three people: Chen Fei, Miyoshi, and Brown. Eating, drinking, sleeping were no burden. Most of the giant battleship's cabins were empty, with nothing inside, except perhaps a few hastily stacked supply boxes.
The universal humanoid combat mechs would move when used, and stop when not. If they malfunction, at most a part is replaced, and if they're completely broken, they're disassembled and recycled. When in standby, they can be stacked neatly somewhere, not requiring food or air, saving space and resources, merely consuming some crystal energy, which the giant battleship's energy self-sustainability can support. Moreover, the crystal energy reserve doesn't take up much space.
However, as the number of passengers aboard the giant battleship increased, these people have survival needs, social needs, entertainment needs, they can get tired, be lazy, have negative emotions. Thus, facilities catering to various needs began to appear.
