CHONGQING , China ( CNN ) -- Anna He is like a lot of kids about to turn 10 . She plays with her brother , fights with her sister , practices piano , hates vegetables and is adapting to her new life -- adapting , because even though she 's Chinese , this little girl seems far from happy about living in China . Anna He , 9 , finds it hard to adjust to life after she was returned to her biological parents , Jack and Casey He . `` I always hate staying in China , '' she says . `` It 's one of the worst places I have ever been . When I first went to the big city , there was so [ much ] pollution and so [ it ] always makes me feel bad . I also do n't like the smell . '' Her new life in China began after the Tennessee Supreme Court ruled last year that Anna should be returned to her biological parents , Jack and Casey He , known in China as He Shaoqiang and Qin Luo respectively . The decision ended a six-year custody battle . Anna was born prematurely while her parents were in Memphis , Tennessee , on temporary work visas . Unable to cope financially , they decided to give her up temporarily until they were able to get back on their feet . That 's when Jerry and Louise Baker stepped in and agreed to take temporary custody of Anna , when she was 4 weeks old . The Bakers said they made a verbal agreement with the Hes to take care of Anna until she was 18 . But the Hes dispute that . They wanted their daughter back soon after her first birthday and eventually went to court to have their parental rights restored . After a bitter legal battle , the Hes finally prevailed and Anna was returned to her parents . Anna was given a six-month transition period to adjust to her biological family before the Hes left the United States . Now back in China , Anna is still finding it hard to adjust . Her biological parents have separated since returning to their homeland . Casey He relocated her family from Changsha , China , to Chongqing -- a sprawling mega-city on the banks of the Yangtze River with a population of 32 million . Like most of China 's big cities , it 's heavily polluted . During the winter , the sun rarely breaks through the heavy brown smog . Jack He says the marriage is over . Casey He appears shaken when asked about her husband and why she packed up and left , with Anna and her younger brother and sister -- Andy , 8 , and Avita , 6 . `` A lot of things were not what I intended and not what I had hoped , '' said Casey He . She said she would talk about why she left `` one day when the kids are bigger . '' Jack He says the couple disagreed over how they should raise their children . He has limited contact with his family ; Anna has seen him only once in the past two months but says she does n't miss him . Asked why , she said , `` I do n't know . It 's just a feeling in me . '' Now a single mother , Casey has enrolled all three children in a boarding school during the week . A tough decision , she says , but necessary -- especially for Anna , who was a straight-A student in the U.S. but now struggles because she ca n't speak Chinese . `` I know American people say I am bad , I take the kids to school , this is not good . But in China , the Chinese people do n't think so . They study very hard , '' Casey He said . She lives with her children in a small , two-bedroom apartment ; it 's clean and sparsely furnished . Casey bought a new piano for Anna and Avita , who are both taking lessons . The apartment and school are both paid for by Casey He 's brother , a wealthy businessman . Life is difficult , she says , but she has no doubt that despite Anna 's struggle to fit in , the little girl is still better off with her in China rather than living in Memphis with the Bakers . `` In China one single mother take three kids -- for me , it is very hard . But I love my kids , mother 's love from my heart , '' said Casey He . `` I can take care of the kids . Give them better life . '' Since her parents split , Anna has re-established regular contact with the Bakers , who call every Saturday . But after more than a year with her biological family , Anna is still unsure of where she would rather be -- with her mom or the Bakers . `` I can not pick anyone . I would die if I would pick one , '' she said .
Anna He was taken in by Tennessee couple during her parents ' financial hardship . In 2007 , Tennessee Supreme Court ruled she should return to biological parents . She has been living with them ever since and is now a legal adult. Anna still adjusting to life with mom , siblings . `` I can not pick anyone , '' says 9-year-old Anna about her 2 sets of parents .