Super Agent on Campus

As the most potential student in the intelligence agent training center to become a super agent, Li Feiyu's first mission was to go to Tianda to find someone, a young and beautiful female student with a birthmark on her butt. This female student was among tens of thousands of students, with no other clue except the birthmark on her butt. Only by having extremely close contact with all the girls can we know whether they have birthmarks on their buttocks, and the mission is only for three months. What should Li Feiyu do? Group: 52257929