Why is it you're here with いんの
Grammar Explanation: Contracting いる+の to いんの

Aru returns to her classroom after club. Expecting the classroom to be empty, she’s singing a song about herself as she enters the room. There, she finds her friends idling away the time.
- アル:
- 「なな 何で皆
( いんのよ!(誰( もいないと思( ってた!)」- “Wh- why is it that you all are here?! (I was thinking no one was here!)”
- Literal: “Wh- why is everyone here?! (I thought no one was here!)”
- “Wh- why is it that you all are here?! (I was thinking no one was here!)”
- なこ:
- 「(なんだ今
( の歌( …)」- “(What was with that song just now...)”
- ソトカ:
- 「師匠
( がアルを待( つって」- “Master said she'd wait for you.”
- アル:
- 「でも私
( 部活( あるわよ」- “But I'm in a club!”
Note: Sotoka refers to Bocchi as 師匠
Key Points
1いんの = contracted いるの
- 皆
( いんの is a casual spoken contraction of 皆( いるの.
2のよ gives emotional explanatory force
- Sentence-final の adds an explanatory “how come…?” feeling.
- よ makes Aru’s reaction more forceful and expressive.
Vocabulary
師匠 (Master)
師匠
( means a master, teacher, or experienced mentor in an art or trade. It is widely used for professions built on apprenticeship.部活 (Club activities)
部活
( is an abbreviation for 部活動( , which are activities that students participate in after school or before classes begin. These include sports clubs and cultural clubs, and they are organized so that students with shared interests can improve their skills and build friendships.
See Also
- Grammar: Reasoning with 〜のだ
- Grammar: Quoting and reporting with と and って
- Kanji: Sections and departments with 部
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