I will avenge her

Summary:
Revenge, Contract marriage, slow burn romance, secrets..

"Father, I don't know him. I don't want to marry him!" I screamed.
"Lily, it's for the good of our company. His father is a very rich investor. He might help our bankrupt company." My father spoke, as stern as ever.
"Why have you been so cold and distant ever since she passed away? I'm your daughter too. Don't you care about me at all?" I said, hoping he can't see my tears.
He remained quiet.
"She was attacked.. Have you ever tried to investigate her death? Or did you just accept her death like the coward old man you are?" I said.
He looked at me in the eyes. I could tell how furious he was. For what though? Because I said the truth.
"You are going to marry him." he said, gritting his teeth now.
I knew I won't be able to change his mind.
"Thank you for everything, Mr.Wilson." I said and walked out.
He doesn't care about me, hell, I don't think he ever did.
Everything has been going bad after her death.
"Take care of him for me." I remembered my sister's last wish.
How am I supposed to take care of him when I DON'T KNOW HIM? I.. I never met your boyfriend. You never told me his name. Why didn't you tell me any information about him?


How will I be able to fulfill your last wish?