The Duke's Family Needs Home Education

'''I became the home tutor for the male lead’s younger half-siblings. The original story’s plot is simple. It’s a common contractual marriage trope where the female lead, to avoid an unwanted marriage proposal, blackmails the Duke. The problem here is… that the Duke’s weakness she’s holding onto is the act of patricide that wiped out his entire family. “Tell me, Miss Margaret. What is your intention in catching my eye?” It’s bad enough that I was reincarnated as an extra, but to have to offer my neck when the male lead seizes control of the family? What kind of unlucky role selection is this? Running away would solve the problem, but… “Young Master, I want one thing. Don’t kill C...