Isn't the café named as such with 〜でしょう

ココア:

「このお店(みせ)の名前(なまえ)ラビットハウスでしょう？」

“This place is called Rabbit House, right?”

「ウサ耳(みみ)つけないの？」

“How about if we add bunny ears?”

チノ:

「ウサ耳(みみ)なんてつけたら違(ちが)う店(みせ)になってしまいます」

“If we put on bunny ears, it would turn into a different kind of shop.”

Key Points

1. でしょう asks for confirmation

   • In ラビットハウスでしょう, Cocoa is not making a wild guess. She expects Chino to agree that the café is called Rabbit House.

   • Here でしょう is close to “right?” or “isn’t it?”

2. Ommitted particle は

   • The topic marker は is omitted after このお店(みせ)の名前(なまえ) in the casual spoken line.

   • The noun phrase このお店(みせ)の名前(なまえ) means “the name of this shop”.

3. でしょう attaches to the whole statement

   • The underlying statement is 「このお店(みせ)の名前(なまえ)はラビットハウスだ」, meaning: “This shop is called Rabbit House.”

   • Changing だ to でしょう turns it into a soft confirmation question.