弘仁 こうにん貞観 じょうがん時代 じだいじゃないです
kō ninjōganjidaijanaidesu

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 弘仁貞観時代

1. It's not the Kohjin-Jogan period.; It isn't the Kohjin-Jogan period.

Negative
Polite
Casual Register