Isn't the café named as such with 〜でしょう
Grammar Explanation: Presuming with 〜だろう and 〜でしょう
 Cocoa suggests she and her co-workers add bunny ears to their uniforms, but the others reject the idea.
- ココア:
 - 「このお店の名前ラビットハウスでしょう?」
 - “Isn't this café named Rabbit House?”