Kagero the Cannon Ninja

If this card is Normal Summoned, Special Summoned, or flipped face-up: You can Special Summon 1 “Ninja” monster from your hand or GY in face-down Defense Position, except “Kagero the Cannon Ninja”. When your opponent activates a card or effect that targets exactly 1 “Ninja” card or exactly 1 face-down Defense Position monster you control, while this card is in your GY (Quick Effect): You can Special Summon this card in face-down Defense Position, and if you do, return that targeted card to the hand. You can only use each effect of “Kagero the Cannon Ninja” once per turn.