西武 せいぶ池袋 いけぶくろ せんでしょう
seibui kebuku rosendeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 西武池袋線

1. Probably the Seibu Ikebukuro Line.

Polite
Presumptive
Conjecture
Business