City: Playing as the Girlfriend's Dad at the Beginning

I have a girlfriend who is more beautiful than the current top stars. But bound to an extremely cheating system? I was asked to play the role of my girlfriend's father, and I could do it, and I succeeded in playing the role the first time, and the system rewarded me with a reward of 500 million! But the setting requires me to become the richest man in the country within five years before I can really get a girlfriend. What kind of weird setting is this? If you violate it, you will become a eunuch! Damn it, I'm a normal young guy, holding the most beautiful woman in the world every night but not being able to touch her! I don't believe in evil and will become the richest man in the country within five years, right? I accept this challenge! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.