"Hmm," Tang Yuran nodded gently.
"When I was born, the doctors said that I might not live past twenty..." Gu Yu looked tenderly at Tang Yuran, "I thought that would be my whole life. Just being able to come to this world, see the city you lived in, that would have been enough. But now, suddenly, I feel that if I can't stay by your side until we're old, I would be unfulfilled."
His voice paused for a moment before he continued, "So, I want to try to live on, not just be with you until I'm twenty."
"Hmm..." Tang Yuran, looking into the tenderness in his eyes, listening to his deep voice, felt a soft place in the depths of her heart being touched.
"But for congenital heart disease like mine, wanting to keep on living, with the current medical technology, the only solution is to get a healthy heart," Gu Yu said after a moment of silence before continuing, "America has the leading technology in the world for heart transplant surgery, so..."
At this point, he didn't continue.