The Ocean Master

Noah was seated in the back of a large golden killer whale that serenely swam towards an extravagant castle that shone with lights in the distance. 

The one that had been referred to as Ocean Master sat in front of him, surrounded by two Atlanteans letting out waves of power at the Mythical rank. This was the current ruler of Atlantis, an Atlantean one rank higher than the beings Noah had come across with before.

The Ocean Master in front of him let out a wide smile as comfortably sat and let out waves of power at the PHANTASMAL rank. This was the level of power that Noah set as a goal before he finished his journey in the Lost World. He still didn't have even the slightest idea of just how hard it would be to achieve it though.

"You must have met the late King Neptune when you finished your procedure on the last floor, so I'm assuming you've heard the secrets that even many higher-ups in Atlantis aren't yet aware of."