The 100 Curses of Illeston Mansion

I’ve been reincarnated into a template fantasy novel.
The problem is that I’m a necromancer supporting character with the world’s strongest setting, sacrificing my life for the protagonist.

‘This is ridiculous!’

With this power, are you telling me I have to sacrifice my life and follow the protagonist like a lunatic?
That’s why I’m here.
To the mansion of Raytance Orr Illeston, the antagonist within the story.
To where I’m needed.
To the place where I can live the most comfortably.

“I’ll lift the curse on this mansion. In exchange, please take care of me.”

To survive, I have to do something a little scary, but I have no choice.

I have to become the savior of this mansion.

[Instructions for Illeston Mansion] First, entry and exit to the mansion are restricted. Don’t approach the entrance closely, and use the back way when going out.
Failure to comply may result in your life being forfeited.

.
.
.

Hundredth, never enter Grand Duchess Florie’s room. Don’t knock on the door or even pass by nearby.
Also, prepare meals for Grand Duchess Florie twice a day, for two people.