The main character of this movie is Lynn, an excellent math girl who seems to have answers to any question. During an interview at the most prestigious private school in Bangkok, the confident young lady plays hard and gets a scholarship. Even if he seems to know all of them, Lynn is not at all capable of socializing. On the first day at the new school, the only one approaching her is Grace, a colleague not very inclined to study. So when Grace asks her to help her with an important exam, she accepts and conceives a very interesting scheme to get her out of the problem. Immediately this stunt attracts the attention of other students with a lot of money and a little bit of study, and Lynn creates a real network to help students pass the exams in exchange for money.