Nine million high school graduates take China's national exams Gaokao this year.
The notoriously hard exam tests high school leavers on their Chinese, mathematics and English and another science or humanities subject of their choice.
Tests results will determine which university they can attend, and therefore much of the rest of their future. Any kid cheating on the tests could end in jail.
To help prepare fo this challenge, parents hire tutors and Gaokao nannies. They are highly educated students or recent graduates that move in with students to study with them in the run up to the exam, says a report on the Sixth Tone website. For example Zhao Yang, a Shanghai university freshman, is paid a daily wage of 300 yuan ($45; £32) to chat with his client and stay up with him during all-nighters.
However, these nannies are not a solution to every student need, Saima Domestic Services, a Gaokao nanny agency, told Sixth Tone. "Because they are highly educated and mainly offer companionship, they are weak in terms of cooking and cleaning," said a customer service agent.