Sungkyunkwan Scandal Episode 20

Yoon Hee takes her brother’s identity and tries to find odd jobs to support her family during the Chosun Dynasty. She starts taking exams for scholars trying to get into the prestigious Sungkyunkwan University but is discovered by a morally upright Sun Joon, who threatens to turn her in. Thinking she is a boy, Sun Joon convinces her to take the exam and she is accepted into the school, where she befriends some mischievous students. But how long can she keep her true identity a secret?