In-game Description

JP: [Happy Birthday!!]緋村那岐咲
「それにしてもお姉様方、ここは一体どこなのでしょう……？なんだかとても静かな場所ですが……」

EN: [Happy Birthday!!] Himura Nagisa
"By the way, Onee-sans, where on Earth is this place......? It's very quiet here......"