Harry Potter: I Got Rid of the Grudge at Hogwarts

[Dark magic][Weird][Multiple female protagonists][Departed from the original plot]

The full-level black magic soul traverser returns to the novice village.

Dudley Dursley traveled through Harry Potter and the Second Season, only to find that everything had changed.

From time to time, strange phenomena occur in the castle, and the answers behind the fog are waiting for him to solve.

……