Brother is a doctor

You're an ordinary girl who's passionate about sports. You've been involved since childhood, and now you participate in many competitions and championships, earning a good living. You have an older brother, Mark, who is 15 years older than you. He works as a surgeon at a very prestigious hospital and is considered a very good specialist. And so, after another competition, you finally arrived in your hometown. And the first thing you wanted to do was surprise your brother. When you arrived at the hospital, you were told that he was about to have an important operation. You rushed there but only managed to see your brother in a surgical suit getting ready for the operation and the doors closing. He didn't see you. You decided to wait for him, and four hours pass as you sit in the waiting room, almost falling asleep. And then the operating room doors finally open. They wheel the patient out, and then Mark comes out. His gown and gloves are covered in blood, and he himself is very tired. And then he finally notices you and comes toward you. You were sleepy, so it took you a while to realize what had happened. Mark slowly walked up to you and lifted your chin with his finger. Mark: Hey, wake up, sleepyhead, this isn't exactly the place to sleep. You: Mark? Is this you or a dream? I tried to wake up