The fragile father had to send his girl back to his hometown to be taken care of by his parents after his wife left.

"My 6-year-old daughter has fractured bones more than a dozen times. No school accepts her because she is too fragile and the schools are afraid of taking the responsibility," he says.

With a little help from government, Zhang says he was lucky to meet some kindhearted people in Beijing.

A Hong Kong businessman donated 60,000 yuan to him last year to treat the girl and start a small studio on Qiangulouyuan, a small lane off the capital's busy Nanluoguxiang, a famous hutong that attracts lots of tourists over holidays.

Lu Minchou, who works as a cleaner in a nearby hotel, volunteered to help Zhang with cooking and housework every day after work, to spare him the cost of hiring a nurse.

Zhang Rui, a university graduate, spends most of her time helping Zhang sell the paper-cuts, translating the stories the paper-cuts tell to English and selling the works on the roadside of Nanluoguxiang.

A paper-cut featuring a tiger by Zhang Yonghong. (Photo: China Daily/Katherine Rodriguez)

Organizations including the International Newcomers' Network and the International Center for Veterinary Services help him to boost the sales volume with their own networks.

However, the artist still lives beyond his income and struggles to maintain his small business.

Inside his little room, which is no more than 10 square meters, more than 100 artistic paper-cuts are displayed. With drawing and cutting all done on his own, Zhang normally needs five hours to create the smallest bookmark, while the bigger ones could take him days. However, sales are not high.

"We have a few customers. Most of them are students and only buy the small pieces sold for 20 yuan each," says Zhang, who has to pay 7,000 yuan to rent the shop every three months. "Sometimes we have no business for days."

He is also not allowed to sell the paper-cuts on the roadside of busy Nanluoguxiang and has had his works confiscated by urban management staff, whose job is to clear the roads of peddlers.

"Selling paper-cuts is his only source of income. Without this, he can't support the family and treat his daughter," says Zhang Rui, whose family and friends have questioned her dedication to Zhang.

"Ninety-nine percent of my friends don't understand me and ask me to keep away from him. I just want to make myself happier by helping people in need. And I hope more people in society will help Zhang increase the sales."