- university domain email adress (학교 도메인으로 된 이메일 주소) such as OOO@OOO.ac.kr / OOO@OOO.edu
2. fill the blank and click the button, "apply for free products"
3. confirm the email in your email box
4. join JetBrain
5. download and install pycharm https://www.jetbrains.com/pycharm/
6. write the email address and password (JetBrain)