Card Trivia:Number 31: Heartbreaker


 * This card's number is the inverse of Paradise's Number: 13 = 31. Fittingly enough, since this card is a sort of inverse on the card, Number 13: Paradise, their canon counterparts, Number 31: Embodiment of Punishment and Number 13: Embodiment of Crime are also inverses of each other, due to their bibilical counterparts, Cain and Abel being inverses of each other as well.
 * Ironically, Number 13: Paradise in this case would be represented by Cain, while Number 31: Heartbreaker would be represented by Abel, if their numbers matched their canon counterparts.
 * The Sealed Form of Number 31 is a black crystal heart, similar to the Chaos Heart, from Super Paper Mario.
 * Number 31's OCG name, "Heartbroken Empress Desire" refers to Kotori's struggle during the plot of "My Maiden's Number", where she is literally heartbroken at the thought of Yuma leaving her, and desires to be with him.