Dai shows a poem he wrote for his wife on a set of bamboo slips. [Photo/VCG]

However in 2013, Dai had to go to Hong Kong for an operation because a bone was piercing through his skin due to the amputation. During his stay in Hong Kong, he met his wife Wu Simiao - a nurse.

Dai said he liked Wu because she reminded him of the medical workers who took care of him in hospital. They fell in love and talked on WeChat, a popular messaging platform, almost every day.

To express his love, Dai bought a 100-meter-long scroll to record his feelings. Over the past four years, he wrote a poem on the scroll almost every day.