Because why is this café named as such with 〜ので
Grammar Explanation: Objective reason with 〜ので

After having her suggestions of staff wearing bunny ears be dismissed, Cocoa asks about the café’s name.
- ココア:
- 「じゃあなんでラビットハウスなのでありますか!」
- “Well, for what reason is (this café) called Rabbit House?"”
- Literal: “Then why is it Rabbit House!”
- “Well, for what reason is (this café) called Rabbit House?"”
- リゼ:
- 「そりゃティッピーがこの店のマスコットだからだろう?」
- “That's because (the rabbit) Tippy is the shop's mascot, isn't it?”
Key Points
1なんで asks for the reason behind the name
- なんでラビットハウスなのでありますか asks why the café is called Rabbit House. Here なの gives the question an explanatory frame.
2でありますか makes Cocoa sound theatrical
- であります is a stiff form of です. Cocoa’s forceful question sounds exaggerated rather than like an ordinary polite inquiry.
3Rize answers with だからだろう
- ティッピーがこの店
( のマスコットだから gives the reason, and だろう asks Cocoa to accept it as the obvious explanation.
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