They remained in Chengdu, hoping it would increase the chances that Qifeng would find them, and in 2015, Wang began driving for the Uber-like Didi Chuxing and spreading the word. Wang Mingqing's daughter went missing on January 8, 1994. "It was only five minutes and then my daughter was gone", Wang told the West China Daily. When he returned, Qifeng had disappeared.
The next day, the desperate parents went to the local police station to report the disappearance of their daughter, started checking with children's welfare organizations to see if they had received reports of a missing girl, posted a plea for help in local newspapers and checked a missing-persons database regularly. They left no stones unturned to find their daughter, but were not successful. He estimates that he asked around 17,000 passengers about his daughter during the last two and a half years he spent as a taxi driver.
At the end of past year, a police sketch artist in Shandong Province came across Wang's story and offered to draw two sketches of what Qifeng might look like as an adult, Chinese media reported.
"My biggest wish right now is that someday my daughter will sit down in my vehicle, and shout 'Dad!'" Wang said previous year.
"It was the first time I have called them mother and father since we regained contact", Kang Ying, the daughter, told a swarm of reporters after breaking a long, tearful embrace with her biological parents, Wang Mingqing and Liu Dengying.
When asked what he would like to say to his beloved daughter, he lamented, "I'm sorry, Daddy didn't live up to his responsibilities as a father".
Watch the videos below for the magical moment the family was reunited. It was shared online thousands of times, and eventually reached Wang's daughter.
Kang Ying contacted Mr Wang earlier this year and learned she shared some traits with his missing child, such as a small scar on her forehead and getting nauseous whenever she cried.
Kang Ying and her mother, Liu Dengyeng, hugged each other tightly and cried as they were reunited - and were quickly joined by the rest of the family.
Several false flags appeared over the years; a number of women who could have been Qifeng but were cleared after DNA test results.
Kang Ying saw the image and was struck by the similarities.
"My efforts of 24 years were not wasted".
"From now on, Dad is here - you don't need to worry about anything - Dad will help you", Wang said, the BBC reported. Chinese outlets said that Ying was raised in a town just 12 miles from her parents, but didn't say how she ended up there.
After talking online with Wang, Kang chose to get a DNA test. She has yet to offer any details on how she got there or how she became separated from her family.