びわこおうなまずじゃないです
琵琶湖大鯰じゃないです
biwako ō namazujanaidesu

Noun
Desu Copula
Negation Auxiliary

The polite negative form of びわこおおなまず

1. It's not the giant catfish of Lake Biwa.

Negative
Polite
Casual Register
Usually Written in Kana