おにいとまきじゃなかったです
鬼糸巻鱝じゃなかったです
oniitomaki janakattadesu

Noun
Desu Copula

The polite, past negative form of おにいとまきえい

1. Wasn't a ghost thread-rolling fish.; Wasn't a spooky, stringy fish.

Past/Perfective
Negative
Polite
Casual Register
Usually Written in Kana