Celine traveled to the world of Harry Potter.
The outline article only covers the seven Harry Potter books, not the prequels or postquels. The main plot of the original Harry Potter novel will not be changed, the protagonist will not enter the main plot, and the time span will be 1982-1999.
To put it nicely, the protagonist is being wise and protecting oneself, but to put it badly, it is saying that the matter is irrelevant to him.
24.10.30: Added some additional explanations in the speech.
Intention: freedom