Richard is the main antagonist of Aura both in the real world and Roya.
Richard begins the game with a vendetta against Aura because she upstaged him in a school related event, but Aura hardly remembered him when they meet in Roya. Richard liked Aura because he saw her as someone with free will, and unlike most other people around him, a real person.
In the real world Richard was the inheritor of Lionheart Industries and the student council president. He was the second ranking student with a test score of 479/500, only behind Aura herself.
In Roya, Richard became a demon king set on taking over the entire world. He was not concerned with the people of Roya, considering them all NPCs and incapable of real thought. His belief that everyone was an NPC carried into the real world, where he believed most people were also NPCs. This caused him to grow curious about Aura, who he saw as a real person like him.
He was the only person that could intimidate Alicia.
As part of Alicia's scheme to make Rose look like Richard's acomplice, he started seducing her. He admitted he liked Rose's spirit, but it wouldn't save her from Richard and Alicia's machinations.
In a twist of irony he was a fan of the game Aura was developing, but he was unaware of the creator, which during Aura's gyarufication gets cancelled.
Richard's Divine Gift was the Terran Knight.