By the time Aaron entered his class, the first he saw is the new girl sitting on the vacant seat beside him. If he could, he would strangle her to death, but Josh told him to wait.
"Mr. Coleman, you've arrived! Where is your sister? She should be here with you." The teacher said. She is not angry about the fact that the twins ran out of her class since they sent their unconscious classmate to the nurse. But if they had done that already, Anna should also be here with her brother.
"She... uh..." If he were to say the truth that Anna stayed at the infirmary, Anna might get in trouble for going back to the class. Anna has no reason to be at the infirmary other than sending Nathalia there. Afraid that his sister might get in trouble, Aaron rocking his head to find a plausible excuse for his sister. "My sister's allergy suddenly reacted so she has to get herself cured at the infirmary."