My Understanding Is Incredible, I Became the Mastermind Behind the Scenes

Superpower? Doesn't exist! System? It doesn't exist either! Watch the protagonist create a prosperous world with his heaven-defying understanding! ! ! ! This is a time traveler who cheated on himself, and finally became the mastermind behind the scenes. Hand story! ! ! The introduction is weak! ! ! ! This is my first time writing, so I can't be very tolerant if I don't write well... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.