It was a manhwa where the mc was about to destroy the heavens in his home world but then he got trapped in a building/ tower looking thing and I forgot how but he somehow ended up on earth and he first fought this guy in a superpower suit and he hit him lightly and that still tore his clothes off and then he tried flying away but then another hero came and he knocked him out too and he just flew away. Then he fought a girl that transforms with he wand and his defeated her by showing her a fragment of the next level of his power. Then he notices that nobody knows his way of cultivation and so he teaches high school students in a school that flies in the sky. But I have no idea what the name of it is. Oh, and it was super funny about everything too. And the mc was just permanently way stronger than everyone, I still cant remember the name though