"We provide induction programs which include details of how to register with a doctor, how to stay safe, where to eat and where to buy food," Purchase said.
However, some children do not feel emotionally close to their local guardians or teachers.
Shen Qiu, a 16-year-old student at a London college, said she only met her guardian once and that was at the airport.
After that, she never received any phone calls or visits from the woman. But the girl doesn't want to complain to the agency about the situation. "I don't think I really need the guardian. She is not my family or friend," Shen said.
Junfei is luckier because he has relatives in the UK. The boy has adapted to life in Oxford much better and made some friends. He will soon fly to China with his best friend for their summer vacation.
While homesickness is no longer a headache for him, Junfei feels the gap between him and his parents is growing larger.
"Every week we make a video call for about 20 minutes. The topics are always the same: My parents ask me to focus on study, behave well and take good care of myself," Junfei said.
Wang Ya, a businesswoman from Hohhot, the Inner Mongolia autonomous region, is planning to send her 15-year-old daughter to a British private high school.
Wang hopes studying abroad will broaden her daughter's horizons, improve her language skills and make her more independent.
According to the 2012 Overseas Study Development Report by the Center for China and Globalization, an independent, non-profit think tank in Beijing, China had 78,000 pupils aged 18 or younger studying abroad.
In the UK, Chinese are the largest group of overseas students in British schools.
There are almost 25,000 non-British students, with parents living overseas, at British schools, and nearly 4,000 are from the Chinese mainland, according to the Times.
"It's the biggest growth market," said Ian Hunt, the managing director of Gabbitas, an education consultancy.
Childhood in an isolated sterile room