His soul transmigrates into the 1970s, and he's sold off from the start? The System in his head says: "Don't be scared. Go crazy first!"
So...
My awful aunt and uncle want to sell me? I'll make them eat nothing but steamed cornbread!
Factory parasites want to mess with me? I'll make sure they rot in prison!
My rival wants to steal my patent? I'll make him lose everything!
They call me crazy, a total show-off, but all they can do is watch as I grow rich, become famous, and earn one honor after another!
Later, the man no one dares to mess with pulls me into his arms and announces to everyone:
"I spoiled her. Got a problem with that?"
[The heroine is truly unhinged and smarter than everyone else. The hero is her ultimate straight man. Together, they're an unstoppable power couple who make this story incredibly satisfying!]
Five-star review: The heroine design is so sexy. I really liked it so much that it is very breast-friendly. The only shortcoming is that the text is too short and only has more than 40 chapters.