As for the Promised Demons, Why Are They All Kryptonians?

A giant demon lord from the traditional world of cultivating immortals ascended and broke into a cultivating society that was completely transformed by modern business rules. In order to survive and take revenge, he had to learn QR code payment, five-star praise and krypton gold card drawing from scratch, and eventually became a "commercial demon" who subverted the rules of the two worlds.