Once you enter Mysidia, a cutscene is triggered.
After the cutscene, you'll get another ship called Lunar Whale. This alien ship allows you to go to a new world; the Moon.

Now before we explore the new world, let's revisit our blacksmith.

Lunar Whale

Ship manual:

• Examine the steering wheel to fly the Lunar Whale.
• Examine the Crystal to travel between the Moon and Earth.
• Use the bedroom to restore HP/MP.
• Fat Chocobo for storing excessive items.