Do you want an origami ninja star with んです
Grammar Explanation: Reasoning with 〜のだ
A couple of girls admire the foreign student Sotoka, as she has a sparkle about her. Sotoka notices the girls, mistaking their admiration as being for the origami ninja stars adorning her school bag.
- ソトカ:
- 「ほしいんですか？手裏剣」
- "Is it that you want one? This."
Sotoka has noticed the girls admiring, but as an incomplete observation she is unaware of why they are admiring. She suggests the reason in the form of a question, as she considers they are admiring her origami ninja stars.