きばうみになじゃなかったです
牙海蜷じゃなかったです
kibaumininajanakattadesu

Noun
Desu Copula

The polite, past negative form of きばうみにな

1. Wasn't a tooth sea.; Wasn't curling teeth.

Past/Perfective
Negative
Polite
Casual Register
Usually Written in Kana