Can't progress further in the gym room quest. The game keep asking to clear sub quest in the academy to progress main quest.
The only one to give me a quest was fairy lady outside academy's main building that told me to find "6 portal", found 4 of them (2 trees, girl in the cafeteria, and the book in empty classroom) but every time I choose Yes option, my screen goes black.
If someone could give me some pointer of how to progress, that would be appreciated.