Coaching Hogwarts

The protagonist of this book is a little wizard nanny type at Hogwarts. Like the master, in reality he is an absolutely good teacher. But it seems that he is worried about this and that, as if this and that are always binding the protagonist. According to the original book, Dumbledore tied himself in chains. The protagonist of this book seems to be chained by various things. It seems that there is less sense of self-choice and more of passive resolution of various things.

Why can't I understand Chapter 1 at all?

Can the protagonist rival the White Devil, Professor Felix Hyp? Have you seen it?

Brothers, no need to read, the author has already cut it