My Mother-In-Law Asked Me to Give My Son to My Sister-In-Law as a Mistress

My sister-in-law was a mistress, and I was forced to work as a cow. My mother-in-law and husband treated me like nothing. I can't bear it! But when they want to sell my children for money, I go crazy! If someone bullies me even a little bit, I will go crazy even more. I will hold a kitchen knife in my hand and angrily attack my weird mother-in-law. Divorce is not an option? Then I will go to the company every day to make trouble to see who can outlast whom!