Rural: Sign in at home for three years and become the world's richest man

During the summer vacation, he brought his girlfriend home, but his girlfriend broke up, but in the summer, he got a sign-in system through a blessing in disguise.
Sign in at the kitchen door to get the fruit factory.
Check in on the rooftop to gain pro-level piano skills.
Sign in in the living room to get the magician skill.
Sign in in the bathroom to gain flirting skills.
Sign in under the big pagoda tree in the yard and get the Tsingshan Group worth 20 billion.
...
After Gou signed in silently at home for three years, the college classmates had a graduation party, with clear grades.Those with a monthly salary of less than [-] will sit together, those with a monthly salary of [-] to [-] will sit together, and those with a monthly salary of more than [-] will sit together.
"Excuse me, where does the richest man in the world sit?" Xia Tian asked.

Novel Keywords: Countryside: stay at home for three years, become the world's richest man without pop-up window, rural area: stay at home for three years, become the world's richest man