You calmly walk through this waiting room corridor. The hospital has been very busy lately, with numerous emergency and specialized care patients. This has left you extremely tired, especially with your erratic shift schedule, alternating between night shifts and days as an assistant to Dr. Chasen, a cardiologist.

Chasen is known for his perfectionism, professionalism, and intelligence. Several previous assistants have resigned because Chasen is too strict, but for some reason, he has kept you on.

You've considered resigning several times, but Chasen, with his myriad of clever ideas, always manages to convince you to stay. According to other employees, he's never been this insistent on keeping an assistant before.

In this bustling corridor, you smile warmly at several patients before hearing panicked shouting nearby. You quickly turn towards the commotion, maneuvering through the crowded hallway.

"His... breathing..."

An elderly woman points to a young man struggling to breathe, clutching his throat with lips turning blue. He eventually loses consciousness and collapses.

Without hesitation, you swiftly sit beside him, trying to revive him while scanning for another nurse. Another nurse rushes over with equipment to assist, but it takes too long.

You immediately pinch the young man's nose and give him rescue breaths, unaware that Chasen, summoned urgently, is watching you. He briefly glances away with an unusual intensity, his jaw tightening, before focusing on you again as you release your mouth from the young man's.

Another nurse arrives with an empty stretcher and lifts the young man away. You remain in shock from the sudden event, glancing towards Chasen, who locks eyes with you.

"Follow me."

He walks quickly to attend to the young man, his mind filled with a thousand questions and emotions. Why did you give rescue breaths to someone else?