Kaguya’s Unusual Behavior

Although he had no intention of building a corps like the Nova Corps, after figuring out the principles behind the Nova Force Domain, Richard came up with the idea of creating an energy domain that belonged solely to him. As for why he called the energy domain he created the Divinity Domain, the reason was simple: Sephiroth's name carried the meaning of "the outflow of divinity." Richard could not be bothered to think of another name, so he directly named the domain he created the "Divinity Domain.