He continued, "Remember, we promised each other to work for the betterment of the world. You will provide them medical help and I will protect them from all malicious things out there. Did you forget it, Zeng ge?" He asked, "We are supposed to do this together, right?"
Zeng nodded as he talked, "I remember it, Yul. I remember it clearly. But the definition has changed for me. You have become my priority over the years. Even if I treat thousands of people out in the world, if I can't save just this one person, everything goes in vain. It's all meaningless. I don't know anything, I just don't want you to die." He took a deep breath. "You can contribute to the welfare of people by any other means. This method is dangerous. What if something bad happens to you?"
"Again you are back to the same thing!" Yul snapped. He felt his blood boiling. "How many times should I tell you, this is what I want to do. This is not just a job, it's my spirit. My life won't hold a meaning without it."