I Became a Ghost Story After Possessing a Body

I possessed a character in a romance fantasy.

The problem is, of all things, I woke up inside a casket on the day of the original owner’s funeral.
Besides, I’ve read so many novels that I can’t even tell which one this is.
Seeing how cold my family is and how the maids are trembling, I must have possessed a villainess.
First, I need to use my romance fantasy experience to escape this villainess life!
Then, I found a strange pattern.

“What’s this?”

[How to Summon □□]

Is this a summoning circle for spirits or dragons?
Perfect. A villainess needs at least one way to protect herself.

“Meow.”

But why was I chosen by a three-eyed, leopard-spotted ginger cat instead of a spirit or a dragon?
Well, it’s cute, so whatever!