"A fetish genre of (usually drawn) pornography which depicts a character physically hurt either in a sensual way, or in a sexual situation. Ryona usually has situations where the character of focus is beaten up or tortured and is subsequently psychologically damaged in a dominating way by his or her attacker. Typically, the victim is hurt in a way that wouldn't immediately draw blood, cause lasting physical harm, or cause death, which are more the territory of Guro, although the two genres can overlap."
