Sumeragi

"'You know how I like to watch.'""-Sumeragi, episode 3"Sumeragi (皇鬼, Sumeragi oni) (Also known as Emperor Oni)  is a supportive character in Peach Boy Riverside and a High-Oni who appears everywhere Sally goes. It is revealed that he is paying attention to Saltherine because of her awakening the peach power. His true intentions however remain unknown.

Appearance
Emperor Oni is a tall good-looking man. He has short blond hair, black eyes and wears what appears to be priests clothes.

Personality
He tends to be fake good guy but his true intentions remain a mystery. Sumeragi is apparently a demon passing for an Oni who kills Onis for an unknown goal of his.