べんけいかにじゃないです
弁慶蟹じゃないです
benkeikanijanaidesu

Noun
Desu Copula
Negation Auxiliary

The polite negative form of べんけいがに

1. It's not Benkei crab.; I'm not a Benkei crab.

Negative
Polite
Casual Register
Usually Written in Kana