戦国 せんごく乱世 らんせいじゃなかったです
sengokuranseijanakattadesu

Noun
Desu Copula

The polite, past negative form of 戦国乱世

1. It wasn't the Warring States period.; It wasn't a chaotic warring age.

Past/Perfective
Negative
Polite
Casual Register