Note :
I just reached kind of "End of current Chapter" which is "The end... for now". (dead end)
This seems to be triggered by completing the Main Quest :
Trouble at school
Find out what's going at Charlton School
Deal with the cursed objects in the school affecting the students
Since the game world has many characters, events and secrets to explore, don't rush to remove ALL curses in the school. Instead leave at least one curse untouched and use the time to explore and build your character stats and friendships as you like.
In a previous game where I struggled to remove one curse Emily got up to A grades and got personal tutoring by Mr. Stitch the Headmaster. This time I failed to reach this content since I was too fast with removing the curses.