えらぶうみへびでしょう
永良部海蛇でしょう
erabu umihebideshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of えらぶうみへび

1. Probably a Yamiyo-no-Orochi.

Polite
Presumptive
Conjecture
Usually Written in Kana