Riddle Joker is a Japanese-style visual novel from Yuzusoft, built around a futuristic setting where psychic powers have become part of everyday life. Its central character, Arihara Satoru, appears to be an ordinary person, but is secretly an agent for an organization that employs people with astral abilities. His assignment sends him undercover as a student at an academy for Astrals, alongside his sister Nanami.
The story’s tension comes from the collision between that covert mission and the relationships Satoru forms at school. After classmate Mitsukasa Ayase discovers his identity, he learns that she is concealing a significant secret of her own. The cast also includes classmates and an upperclassman, giving the narrative a romance-visual-novel framework focused on characters, secrets and an unusual school setting. The source identifies no specific choice system or other hands-on mechanics, so the game is best described through its premise and character-led format rather than assumed features.
As a single-player visual novel, Riddle Joker is designed for an individual story experience, not a shared or competitive session.
