"Dr. Cao, I'm Du Heng."
"Doctor Du?" Cao Binghe's tone held surprise and a hint of happiness.
Du Heng quickly walked forward and stood before Cao Binghe, shaking his hand. "It's me, Du Heng. I just arrived in the Capital today. Professor Lan told me you were sick, so I came to see you."
The excitement on Cao Binghe's face faded, replaced by bitterness. "I'm truly sorry. I should be welcoming you properly, but now, with my eyes... I..."
"What are you talking about? We're friends; there's no need to be so formal," Du Heng comforted Cao Binghe with a smile.
As he drew closer, he got a clear view of the actual condition of Cao Binghe's eyes.
His eyeballs were filmed over with a faint green layer; the green hue was even visible on his pupils.
