Dorm

The Dorm is available by clicking HQ and then selecting the Dorm. This is an important part of Azur Lane.

When you engage in main campaign content, every fight costs your Shipgirls morale. Being sink costs even more. Morale recovers slowly, and you do not want it to drop too low.

Girls that are hanging out in the Dorm gain morale much more quickly. They also gain free XP plus an XP bonus. So when I'm working on Main Campaign or Permanent Event content, I put the Shipgirls from my mob fleet into the dorm. However, if you have even a single Shipgirl in the dorm, she'll eat the snacks, and keeping up with their hearty appetites is a pain. So I forego the free XP at other times and tend to pull them out.

I believe the rate they eat the snacks does not vary based on how many Shipgirls are there. 1 or 6, they eat the same snacks. I haven't personally verified this.