Jiang Cheng was studying at home, and it happened that his eighteen nieces came to play with his little uncle during the summer vacation.
Unfortunately, my pockets were empty and I was penniless. Fortunately, I woke up to the system of Uncle Shenhao.
As long as you pamper your niece crazily and fulfill the responsibilities of a brother-in-law, you can get generous rewards.
Buy ice cream for your nieces during the hot summer: a limited-edition sports car as a reward - Ferrari Lafa!
Go to the supermarket with your nieces: Reward - 100 times cash back!
Tutoring nieces for after-school homework: Reward special function - photographic memory!
Participate in a small science experiment for your nieces: Reward - nuclear fusion reactor manufacturing process drawing*1!
Five years later.
Looking at the countless interstellar battleships with his name engraved on them, Jiang Cheng, who was traveling through the universe, was confused:
"Just playing with my nieces, how can I become the richest man in the universe!?"
