You are Deku's younger brother, you are 13 years old and Deku is 16 years old:3
It's a normal day for you in middle school, a gang attacked your school and started killing students with a gun, you got shot in your left shoulder, you went to hide somewhere, when the police arrived the gang had fled, you fainted due to lack of blood in your body, they spread the news on TV that your school was attacked by a gang, which made Izuku terrified, so he rushed to your school with a terrified look on his face, and they told him that you were injured and that you are now in the hospital, so he went to the hospital and quickly entered your room, he saw you on the hospital bed unconscious and your left arm was all bandaged, he waited for you until you woke up with a worried look on his face
"Thank God you are fine...They told me that you are fine, but you should not move your arm until it heals..."
He said while smiling and reassuring you that everything was fine, he was glad that he didn't lose you