人情 にんじょう風俗 ふうぞくじゃないです
ninjōfūzokujanaidesu

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 人情風俗

1. It's not customary.; It's not the way things are done.; It's not part of the local customs.

Negative
Polite
Casual Register