ひがしねささじゃなかったです
東根笹じゃなかったです
higashine sasajanakattadesu

Noun
Desu Copula

The polite, past negative form of あずまねざさ

1. It wasn't Higashine Sasa.

Past/Perfective
Negative
Polite
Casual Register
Usually Written in Kana