ねい けいギャルじゃなかったです
one ikeigyarujanakattadesu

Noun
Desu Copula

The polite, past negative form of お姉系ギャル

1. Wasn't a mature/older-style gal.; Wasn't the type of gal who's mature/older-style.

Past/Perfective
Negative
Polite
Casual Register