When your opponent activates a card or effect in response to your "Live☆Twin" card or effect activation (Quick Effect): You can discard this card; negate that opponent's effect. If you control a "Ki-sikil" monster and this card is in your GY: You can Special Summon this card, but while it is face-up in the Monster Zone, you cannot Special Summon from the Extra Deck, except Fiend monsters. You can only use each effect of "Live☆Twin Lil-la Sweet" once per turn.