She used a children's song:
Obviously, because she's an elementary teacher and loves children!
She uses alcoholic codenames:
Since she's a teacher she's under stress and drinks a lot. So she also named her members after alcohol!
There are often references to mystery novels like Sherlock Holmes and so on:
Kobayashi also loves mystery novels!
And most importantly - Why she wanted the APTX:
She loves children and wants to turn everyone into a child again![/spoiler]
DUN DUN DUN
Keyhole drawn by Yuri Iwamoto <3
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