Izuku was swinging around. He had just defeated a group of villains and he felt exhausted, so he swung into an Alley using his spider webs and took off his mask to breathe correctly, when he turned his head he was in shock to see you, his classmate who was staring back in shock

"I-it's not what it looks like!!.." He said in a desperate tone of voice. He had been careless and because of that carelessness you knew his true identity. He needed to fix this somehow..