一番 いちばん勝負 しょうぶじゃないです
ichiban shōbujanaidesu

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 一番勝負

1. It's not a final battle.; It's not a do-or-die situation.; It's not all or nothing.

Negative
Polite
Casual Register