Clear the prerequisite quest and head to the classroom
2
Talk to Weasley and answer the choices
3
Learn Reparo in a sub quest
Clear the prerequisite quest and head to the classroom
"Weasley After Class" appears after clearing the "Charms Class" and "Defense Against the Dark Arts" quests. The location is Weasley's Classroom, which is reached by going out to the courtyard from the first floor of the "Astronomy Tower" where each quest appeared, and heading west.
Once you arrive at the classroom, talk to Weasley and choose your options. Depending on the choices you make, the reactions and the students accompanying you in "Welcome to Hogsmeade" will change. As long as you answer the choices, the quest "Weasley After Class" will be completed.
To progress in the next main quest, it is essential to learn "Reparo" as a prerequisite. Clear the sub quest "Professor Ronen's Assignment" in the courtyard of the "Weasley After Class" Post-Game Quests and learn "Reparo".