I Cultivate Through a Madman's Asylum

"Passers by, don't miss out! Second-hand ladies' underwear, cough cough..."
Ivan yelled at the entrance of his small shop, which specialized in selling second-hand ladies' underwear exclusively for men's service.
In this era where superpowers were prevalent across the entire Earth, Ivan chose the path of cultivation.
How dare these mere superhumans have the audacity to challenge the mighty cultivator?
And to top it off, at the start, he occasionally encountered a beautiful girl having fun alone in the dance studio...