From the Start, I Made Up a Sect, and Its Patriarch Became Invincible

[Wild imagination] + [Transmigration] + [Light System] + [Comedy] + [Daily life] + [Invincible] + [No female lead] Guan Jiu from Blue Star accidentally arrives in a cultivation world and activates the Sect Ancestor System. He assumes he'll have to pretend to be an ancestor, but the System turns out to be surprisingly clear-headed: the sect he casually made up is actually recognized by the System. There's no going back now, so Guan Jiu has to keep up the act, pretending to be an invincible powerhouse, even though he really is one. But why is this cultivation world so hard for him to understand? (The synopsis doesn't do it justice, so please give the story a try. It gets more satisfying as it goes, and the power levels don't get nerfed.)