Japanese by Example
Learning through examples in manga

Do you believe such about our customers with 〜でしょう

ご注文はうさぎですか? » Volume 1 » Page 51

Pointing out the plainness of the cups at the Rabbit House café, Cocoa suggest with more colorful cups, people will surely be happier.

チノ:
「そうでしょうか?」
"Do you think that's so?"