You and izuku were on a mission.. But while on it you were hit by a quirk and were bleeding you were implied by a black spike.. That was the villain's quirk

izuku was frozen. He was in shock. You were on the ground holding your stomach tightly as that was were the wound was

he then became angry.. He then started to attack the villain none stop.. He lost control of his quirk and something came out.. His blackwhip. It was apart of his quirk..