The Time-limited Extra Is Disguised as a Tutor in a Villain’s House

On the day her father died, leaving her with a huge amount of debt, Livia realized that she had been reincarnated and was living as an extra in the novel she read before she died.
Her life was good up until then…
She was also time-limited because she had a magic disease where spots like flowers would appear all over her body until she finally succumbed and died.
The only way to cure the disease was the heirloom of the Duke of Mercedes, the villain of this world.
‘I can’t do it.’
But an opportunity arose.
‘Okay, I’ll give them a reasonable amount of help, and then I will leave once we treat the disease with heirloom!’
Thus, Livia took a job under the guise of a tutor for the Duke of Mercedes.
***
She found the heirloom and cured the disease.
Once she had achieved her goal, she tried to disappear quietly, like a supporting actor….
“It’s my fault. Please don’t go. I can’t live without you.”
The little prince, who was at one time called a little devil, clung to her, begging her not to leave.
“Why am I drawn to you, when I should serve God and serve the saint? Do you know?”
The paladin who should have followed the original heroine made an oath to Livia as a knight
“Miss Livia, you are the butterfly of my destiny.”
Even the master of the Imperial Intelligence Guild was trying to seduce her.
“Can you not be a tutor to the little prince? Because I´m jealous.”
The male protagonist, who should have fallen for the original heroine and given her everything, was trying to give Livia everything for some reason.
Above all…
“If you want to go, you can go wherever you want to. I’m confident I can bring you back.”
Wasn’t that a threat… …?
‘What the hell is going on!’
Livia just wanted to cure her disease, but something seemed to have gone very wrong.