女子 じょし こう せいビジネスではありませんでした
joshikōseibijinesudewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 女子高生ビジネス

1. It was not a high school girl's business.; It wasn't a business run by a high school girl.

Past/Perfective
Negative
Polite
Formal Register