The Devil's Smile was comprehended by Jiang Yi at the Yi Clan's Paintings Cliff. It was a type of soul spirit attack which would make the enemy silently affected. After Jiang Yi had comprehended this ability, he had never really released it, especially against women who he didn't dare to release randomly.
He clearly knew that this ability was very effective against women. He had too many things to do, and he wasn't here at the East Imperial Continent and the snow region to pick up girls. He would incur a lot of relationship debt if he was to womanize, and he wouldn't only be letting down Su Ruoxue who was still suffering. He might easily be consigned to eternal damnation.
