The Cheating System of Door-To-Door Son-In-Law

I was a humble son-in-law who was murdered by a love rival and almost lost his life. I didn't want to risk my life for the sake of a wife who I wouldn't let a single hand touch, so I was planning to divorce. I didn't want God to be merciful and give me a son-in-law system at this time. I was so excited at the time, thinking I was about to reach the pinnacle of my life, that I immediately activated the system. But when I saw the first task the system gave me, I was so angry that I vomited blood. This deceptive system actually made me have a fortune of one billion in one month. If I had that ability, I would abandon my dignity and become this useless son-in-law...